Buggy python submission (verdict: Runtime Error):
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
if h==1 and w==1:
    if s[0][0]=='#':
        print('#')
    else:
        print(0)
elif h==1:
    for i in range(w):
        if s[0][i]=='#':
            continue
        if i==0:
            if s[0][i+1]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==w-1:
            if s[0][i-1]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[0][i+1]=='#':
                cnt+=1
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
elif w==1:
    for i in range(h):
        if s[i][0]=='#':
            continue
        if i==0:
            if s[i+1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==h-1:
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
else:
    for j in range(h):
        for k in range(w):
            if j==0:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
            elif j==h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0 
            elif 0<j<h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''

Fixed submission:
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
if h==1 and w==1:
    if s[0][0]=='#':
        print('#')
    else:
        print(0)
elif h==1:
    for i in range(w):
        if s[0][i]=='#':
            continue
        if i==0:
            if s[0][i+1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        elif i==w-1:
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        else:
            if s[0][i+1]=='#':
                cnt+=1
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
elif w==1:
    for i in range(h):
        if s[i][0]=='#':
            continue
        if i==0:
            if s[i+1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==h-1:
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
else:
    for j in range(h):
        for k in range(w):
            if j==0:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
            elif j==h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0 
            elif 0<j<h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''

Buggy python submission (verdict: Runtime Error):
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
if h==1 and w==1:
    if s[0][0]=='#':
        print('#')
    else:
        print(0)
elif h==1:
    for i in range(w):
        if s[0][i]=='#':
            continue
        if i==0:
            if s[0][i+1]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==w-1:
            if s[0][i-1]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
elif w==1:
    for i in range(h):
        if s[i][0]=='#':
            continue
        if i==0:
            if s[i+1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==h-1:
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
else:
    for j in range(h):
        for k in range(w):
            if j==0:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
            elif j==h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0 
            elif 0<j<h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''

Fixed submission:
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
if h==1 and w==1:
    if s[0][0]=='#':
        print('#')
    else:
        print(0)
elif h==1:
    for i in range(w):
        if s[0][i]=='#':
            continue
        if i==0:
            if s[0][i+1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        elif i==w-1:
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        else:
            if s[0][i+1]=='#':
                cnt+=1
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
elif w==1:
    for i in range(h):
        if s[i][0]=='#':
            continue
        if i==0:
            if s[i+1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==h-1:
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
else:
    for j in range(h):
        for k in range(w):
            if j==0:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
            elif j==h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0 
            elif 0<j<h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''

Buggy python submission (verdict: Runtime Error):
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
if h==1 and w==1:
    if s[0][0]=='#':
        print('#')
    else:
        print(0)
elif h==1:
    for i in range(w):
        if s[0][i]=='#':
            continue
        if i==0:
            if s[0][i+1]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==h-1:
            if s[0][i-1]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
elif w==1:
    for i in range(h):
        if s[i][0]=='#':
            continue
        if i==0:
            if s[i+1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==h-1:
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
else:
    for j in range(h):
        for k in range(w):
            if j==0:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
            elif j==h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0 
            elif 0<j<h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''

Fixed submission:
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
if h==1 and w==1:
    if s[0][0]=='#':
        print('#')
    else:
        print(0)
elif h==1:
    for i in range(w):
        if s[0][i]=='#':
            continue
        if i==0:
            if s[0][i+1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        elif i==w-1:
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        else:
            if s[0][i+1]=='#':
                cnt+=1
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
elif w==1:
    for i in range(h):
        if s[i][0]=='#':
            continue
        if i==0:
            if s[i+1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==h-1:
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
else:
    for j in range(h):
        for k in range(w):
            if j==0:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
            elif j==h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0 
            elif 0<j<h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''

Buggy python submission (verdict: Runtime Error):
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
if h==1 and w==1:
    if s[0][0]=='#':
        print('#')
    else:
        print(0)
else:
    for j in range(h):
        for k in range(w):
            if j==0:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
            elif j==h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0 
            elif 0<j<h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''

Fixed submission:
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
if h==1 and w==1:
    if s[0][0]=='#':
        print('#')
    else:
        print(0)
elif h==1:
    for i in range(w):
        if s[0][i]=='#':
            continue
        if i==0:
            if s[0][i+1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        elif i==w-1:
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        else:
            if s[0][i+1]=='#':
                cnt+=1
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
elif w==1:
    for i in range(h):
        if s[i][0]=='#':
            continue
        if i==0:
            if s[i+1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==h-1:
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
else:
    for j in range(h):
        for k in range(w):
            if j==0:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
            elif j==h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0 
            elif 0<j<h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''

Buggy python submission (verdict: Runtime Error):
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
for j in range(h):
    for k in range(w):
        if j==0:
            if s[j][k]=='#':
                continue
            else:
                if k==0:
                    if s[j][k+1]=='#':
                        cnt+=1
                    if s[j+1][k]=='#':
                        cnt+=1
                    if s[j+1][k+1]=='#':
                        cnt+=1
                    s[j][k]=str(cnt)
                    cnt=0
                elif k==w-1:
                    if s[j][k-1]=='#':
                        cnt+=1
                    if s[j+1][k]=='#':
                        cnt+=1
                    if s[j+1][k-1]=='#':
                        cnt+=1
                    s[j][k]=str(cnt)
                    cnt=0
                else:
                    if s[j][k+1]=='#':
                        cnt+=1
                    if s[j+1][k]=='#':
                        cnt+=1
                    if s[j+1][k+1]=='#':
                        cnt+=1
                    if s[j][k-1]=='#':
                        cnt+=1
                    if s[j+1][k-1]=='#':
                        cnt+=1
                    s[j][k]=str(cnt)
                    cnt=0
        elif j==h-1:
            if s[j][k]=='#':
                continue
            else:
                if k==0:
                    if s[j][k+1]=='#':
                        cnt+=1
                    if s[j-1][k]=='#':
                        cnt+=1
                    if s[j-1][k+1]=='#':
                        cnt+=1
                    s[j][k]=str(cnt)
                    cnt=0
                elif k==w-1:
                    if s[j][k-1]=='#':
                        cnt+=1
                    if s[j-1][k]=='#':
                        cnt+=1
                    if s[j-1][k-1]=='#':
                        cnt+=1
                    s[j][k]=str(cnt)
                    cnt=0
                else:
                    if s[j][k+1]=='#':
                        cnt+=1
                    if s[j-1][k]=='#':
                        cnt+=1
                    if s[j-1][k+1]=='#':
                        cnt+=1
                    if s[j][k-1]=='#':
                        cnt+=1
                    if s[j-1][k-1]=='#':
                        cnt+=1
                    s[j][k]=str(cnt)
                    cnt=0 
                    
        elif 0<j<h-1:
            if s[j][k]=='#':
                continue
            else:
                if k==0:
                    if s[j][k+1]=='#':
                        cnt+=1
                    if s[j-1][k]=='#':
                        cnt+=1
                    if s[j-1][k+1]=='#':
                        cnt+=1
                    if s[j+1][k]=='#':
                        cnt+=1
                    if s[j+1][k+1]=='#':
                        cnt+=1
                    s[j][k]=str(cnt)
                    cnt=0
                elif k==w-1:
                    if s[j][k-1]=='#':
                        cnt+=1
                    if s[j-1][k]=='#':
                        cnt+=1
                    if s[j-1][k-1]=='#':
                        cnt+=1
                    if s[j+1][k]=='#':
                        cnt+=1
                    if s[j+1][k-1]=='#':
                        cnt+=1
                    s[j][k]=str(cnt)
                    cnt=0
                else:
                    if s[j][k+1]=='#':
                        cnt+=1
                    if s[j-1][k]=='#':
                        cnt+=1
                    if s[j-1][k+1]=='#':
                        cnt+=1
                    if s[j-1][k-1]=='#':
                        cnt+=1
                    if s[j+1][k]=='#':
                        cnt+=1
                    if s[j+1][k+1]=='#':
                        cnt+=1
                    if s[j][k-1]=='#':
                        cnt+=1
                    if s[j+1][k-1]=='#':
                        cnt+=1
                    s[j][k]=str(cnt)
                    cnt=0
ans=''
for l in range(h):
    for b in range(w):
        ans+=s[l][b]
    print(ans)
    ans=''

Fixed submission:
h,w=map(int,input().split())
s=[]
cnt=0
for i in range(h):
    s.append(list(input()))
if h==1 and w==1:
    if s[0][0]=='#':
        print('#')
    else:
        print(0)
elif h==1:
    for i in range(w):
        if s[0][i]=='#':
            continue
        if i==0:
            if s[0][i+1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        elif i==w-1:
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
        else:
            if s[0][i+1]=='#':
                cnt+=1
            if s[0][i-1]=='#':
                cnt+=1
            s[0][i]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
elif w==1:
    for i in range(h):
        if s[i][0]=='#':
            continue
        if i==0:
            if s[i+1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        elif i==h-1:
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
        else:
            if s[i+1][0]=='#':
                cnt+=1
            if s[i-1][0]=='#':
                cnt+=1
            s[i][0]=str(cnt)
            cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''
else:
    for j in range(h):
        for k in range(w):
            if j==0:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
            elif j==h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0 
            elif 0<j<h-1:
                if s[j][k]=='#':
                    continue
                else:
                    if k==0:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    elif k==w-1:
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
                    else:
                        if s[j][k+1]=='#':
                            cnt+=1
                        if s[j-1][k]=='#':
                            cnt+=1
                        if s[j-1][k+1]=='#':
                            cnt+=1
                        if s[j-1][k-1]=='#':
                            cnt+=1
                        if s[j+1][k]=='#':
                            cnt+=1
                        if s[j+1][k+1]=='#':
                            cnt+=1
                        if s[j][k-1]=='#':
                            cnt+=1
                        if s[j+1][k-1]=='#':
                            cnt+=1
                        s[j][k]=str(cnt)
                        cnt=0
    ans=''
    for l in range(h):
        for b in range(w):
            ans+=s[l][b]
        print(ans)
        ans=''