Buggy python submission (verdict: Time Limit Exceeded):
def main():
    h,w=map(int,input().split())
    L=80*(h+w)+1
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    
    p=x[0][0]
    L=8000
    
    state=[[[False for k in range(L)] for j in range(w)] for i in range(h)]


    state[0][0][p]=True

    for j in range(1,w):
        p=x[0][j]
        for k in range(L):
            if state[0][j-1][k]==True:
                state[0][j][k+p]=True
                state[0][j][abs(k-p)]=True

    for i in range(1,h):
        p=x[i][0]
        for k in range(L):
            if state[i-1][0][k]==True:
                state[i][0][k+p]=True
                state[i][0][abs(k-p)]=True

    for i in range(1,h):
        for j in range(1,w):
            p=x[i][j]
            for k in range(L):
                if state[i-1][j][k] | state[i][j-1][k]==True:
                    if k+p<L: state[i][j][k+p]=True
                    state[i][j][abs(k-p)]=True



    for k in range(L):
        if state[h-1][w-1][k]==True:
            print(k)
            break
if __name__ == '__main__':
    main()


Fixed submission:
def main():
    h,w=map(int,input().split())
    L=80*(h+w)+1
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    

    L=12800
    
    state=[[0]*w for _ in range(h)]
    delta=x[0][0]
    state[0][0]=(2**L>>delta)|(2**L<<delta)

    for j in range(1,w):
        delta=x[0][j]
        state[0][j]=(state[0][j-1]>>delta)|(state[0][j-1]<<delta)

    for i in range(1,h):
        delta=x[i][0]
        state[i][0]=(state[i-1][0]>>delta)|(state[i-1][0]<<delta)

    for i in range(1,h):
        for j in range(1,w):
            delta=x[i][j]
            state[i][j]=(state[i][j-1]>>delta)|(state[i][j-1]<<delta)
            state[i][j]|=(state[i-1][j]>>delta)|(state[i-1][j]<<delta)

    
    ans = 10**9
    for i in range(L*2):
        if state[h-1][w-1] & 1:
            ans = min(ans,abs(i-L))
        state[h-1][w-1]>>=1
    print(ans)



if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    h,w=map(int,input().split())
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    
    p=x[0][0]

    """
    tmp=[ x[0][j] for j in range(1,w)]
    for i in range(1,h):
        tmp+=x[i]
    tmp.sort(reverse=True)
    
    L=p+sum(tmp[:h+w-2])+1
    """
    state=[[set() for j in range(w)] for i in range(h)]


    state[0][0].add(x[0][0])

    for j in range(1,w):
        p=x[0][j]
        for k in state[0][j-1]:
            state[0][j].add(k+p)
            state[0][j].add(abs(k-p))

    for i in range(1,h):
        p=x[i][0]
        for k in state[i-1][0]:
            state[i][0].add(k+p)
            state[i][0].add(abs(k-p))

    for i in range(1,h):
        for j in range(1,w):
            p=x[i][j]
            for k in state[i][j-1]:
                state[i][j].add(k+p)
                state[i][j].add(abs(k-p))
            for k in state[i-1][j]:
                state[i][j].add(k+p)
                state[i][j].add(abs(k-p))

    print(min(state[h-1][w-1]))

if __name__ == '__main__':
    main()

Fixed submission:
def main():
    h,w=map(int,input().split())
    L=80*(h+w)+1
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    

    L=12800
    
    state=[[0]*w for _ in range(h)]
    delta=x[0][0]
    state[0][0]=(2**L>>delta)|(2**L<<delta)

    for j in range(1,w):
        delta=x[0][j]
        state[0][j]=(state[0][j-1]>>delta)|(state[0][j-1]<<delta)

    for i in range(1,h):
        delta=x[i][0]
        state[i][0]=(state[i-1][0]>>delta)|(state[i-1][0]<<delta)

    for i in range(1,h):
        for j in range(1,w):
            delta=x[i][j]
            state[i][j]=(state[i][j-1]>>delta)|(state[i][j-1]<<delta)
            state[i][j]|=(state[i-1][j]>>delta)|(state[i-1][j]<<delta)

    
    ans = 10**9
    for i in range(L*2):
        if state[h-1][w-1] & 1:
            ans = min(ans,abs(i-L))
        state[h-1][w-1]>>=1
    print(ans)



if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    h,w=map(int,input().split())
    L=80*(h+w)+1
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    
    p=x[0][0]
    tmp=[ x[0][j] for j in range(1,w)]
    for i in range(1,h):
        tmp+=x[i]
    tmp.sort(reverse=True)
    
    L=p+sum(tmp[:h+w-2])+1
    
    state=[[[0 for k in range(L)] for j in range(w)] for i in range(h)]


    state[0][0][p]=1

    for j in range(1,w):
        p=x[0][j]
        for k in range(L):
            if state[0][j-1][k]==1:
                state[0][j][k+p]=1
                state[0][j][abs(k-p)]=1

    for i in range(1,h):
        p=x[i][0]
        for k in range(L):
            if state[i-1][0][k]==1:
                state[i][0][k+p]=1
                state[i][0][abs(k-p)]=1

    for i in range(1,h):
        for j in range(1,w):
            p=x[i][j]
            for k in range(L):
                if state[i-1][j][k]==1 or state[i][j-1][k]==1:
                    state[i][j][k+p],state[i][j][abs(k-p)]=1,1



    for k in range(L):
        if state[h-1][w-1][k]==1:
            print(k)
            break
if __name__ == '__main__':
    main()

Fixed submission:
def main():
    h,w=map(int,input().split())
    L=80*(h+w)+1
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    

    L=12800
    
    state=[[0]*w for _ in range(h)]
    delta=x[0][0]
    state[0][0]=(2**L>>delta)|(2**L<<delta)

    for j in range(1,w):
        delta=x[0][j]
        state[0][j]=(state[0][j-1]>>delta)|(state[0][j-1]<<delta)

    for i in range(1,h):
        delta=x[i][0]
        state[i][0]=(state[i-1][0]>>delta)|(state[i-1][0]<<delta)

    for i in range(1,h):
        for j in range(1,w):
            delta=x[i][j]
            state[i][j]=(state[i][j-1]>>delta)|(state[i][j-1]<<delta)
            state[i][j]|=(state[i-1][j]>>delta)|(state[i-1][j]<<delta)

    
    ans = 10**9
    for i in range(L*2):
        if state[h-1][w-1] & 1:
            ans = min(ans,abs(i-L))
        state[h-1][w-1]>>=1
    print(ans)



if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    h,w=map(int,input().split())
    L=80*(h+w)+1
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    
    p=x[0][0]
    L=p+80*(h+w-2)+1
    
    state=[[[0 for k in range(L)] for j in range(w)] for i in range(h)]


    state[0][0][p]=1

    for j in range(1,w):
        p=x[0][j]
        for k in range(L):
            if state[0][j-1][k]==1:
                state[0][j][k+p]=1
                state[0][j][abs(k-p)]=1

    for i in range(1,h):
        p=x[i][0]
        for k in range(L):
            if state[i-1][0][k]==1:
                state[i][0][k+p]=1
                state[i][0][abs(k-p)]=1

    for i in range(1,h):
        for j in range(1,w):
            p=x[i][j]
            for k in range(L):
                if state[i-1][j][k]==1 or state[i][j-1][k]==1:
                    state[i][j][k+p],state[i][j][abs(k-p)]=1,1



    for k in range(L):
        if state[h-1][w-1][k]==1:
            print(k)
            break
if __name__ == '__main__':
    main()

Fixed submission:
def main():
    h,w=map(int,input().split())
    L=80*(h+w)+1
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    

    L=12800
    
    state=[[0]*w for _ in range(h)]
    delta=x[0][0]
    state[0][0]=(2**L>>delta)|(2**L<<delta)

    for j in range(1,w):
        delta=x[0][j]
        state[0][j]=(state[0][j-1]>>delta)|(state[0][j-1]<<delta)

    for i in range(1,h):
        delta=x[i][0]
        state[i][0]=(state[i-1][0]>>delta)|(state[i-1][0]<<delta)

    for i in range(1,h):
        for j in range(1,w):
            delta=x[i][j]
            state[i][j]=(state[i][j-1]>>delta)|(state[i][j-1]<<delta)
            state[i][j]|=(state[i-1][j]>>delta)|(state[i-1][j]<<delta)

    
    ans = 10**9
    for i in range(L*2):
        if state[h-1][w-1] & 1:
            ans = min(ans,abs(i-L))
        state[h-1][w-1]>>=1
    print(ans)



if __name__ == '__main__':
    main()

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    h,w=map(int,input().split())
    L=80*h*w+1
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    state=[[[0 for k in range(L)] for j in range(w)] for i in range(h)]

    p=x[0][0]
    state[0][0][p]=1

    for j in range(1,w):
        p=x[0][j]
        for k in range(L):
            if state[0][j-1][k]==1:
                state[0][j][k+p]=1
                state[0][j][abs(k-p)]=1

    for i in range(1,h):
        p=x[i][0]
        for k in range(L):
            if state[i-1][0][k]==1:
                state[i][0][k+p]=1
                state[i][0][abs(k-p)]=1

    for i in range(1,h):
        for j in range(1,w):
            p=x[i][j]
            for k in range(L):
                if state[i-1][j][k]==1 or state[i][j-1][k]==1:
                    state[i][j][k+p],state[i][j][abs(k-p)]=1,1



    for k in range(L):
        if state[h-1][w-1][k]==1:
            print(k)
            break
if __name__ == '__main__':
    main()

Fixed submission:
def main():
    h,w=map(int,input().split())
    L=80*(h+w)+1
    a=[list(map(int,input().split())) for i in range(h)]
    b=[list(map(int,input().split())) for i in range(h)]


    x=[[abs(a[i][j]-b[i][j]) for j in range(w)] for i in range(h)]
    

    L=12800
    
    state=[[0]*w for _ in range(h)]
    delta=x[0][0]
    state[0][0]=(2**L>>delta)|(2**L<<delta)

    for j in range(1,w):
        delta=x[0][j]
        state[0][j]=(state[0][j-1]>>delta)|(state[0][j-1]<<delta)

    for i in range(1,h):
        delta=x[i][0]
        state[i][0]=(state[i-1][0]>>delta)|(state[i-1][0]<<delta)

    for i in range(1,h):
        for j in range(1,w):
            delta=x[i][j]
            state[i][j]=(state[i][j-1]>>delta)|(state[i][j-1]<<delta)
            state[i][j]|=(state[i-1][j]>>delta)|(state[i-1][j]<<delta)

    
    ans = 10**9
    for i in range(L*2):
        if state[h-1][w-1] & 1:
            ans = min(ans,abs(i-L))
        state[h-1][w-1]>>=1
    print(ans)



if __name__ == '__main__':
    main()