Buggy python submission (verdict: Time Limit Exceeded):
import sys
input=sys.stdin.readline

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)]
  
  dp=[[[] for i in range(w)] for j in range(h)]
  dp[0][0].append(abs(a[0][0]-b[0][0]))
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      for k in dp[i-1][j]:
        dp[i][j].append(abs(k-c))
        dp[i][j].append(k+c)
      for k in dp[i][j-1]:
        dp[i][j].append(abs(k-c))
        dp[i][j].append(k+c)
      dp[i][j]=list(set(dp[i][j]))
  print(min(dp[h-1][w-1]))

if __name__=='__main__':
  main()

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()

Buggy python submission (verdict: Runtime Error):
import sys
input=sys.stdin.readline

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)]
  
  dp=[[[] for i in range(w)] for j in range(h)]
  dp[0][0].append(abs(a[0][0]-b[0][0]))
  for i in range(h):
    for j in range(w):
      c[i][j]=abs(a[i][j]-b[i][j])
      for k in dp[i-1][j]:
        dp[i][j].append(abs(k-c[i][j]))
        dp[i][j].append(k+c[i][j])
      for k in dp[i][j-1]:
        dp[i][j].append(abs(k-c[i][j]))
        dp[i][j].append(k+c[i][j])
      dp[i][j]=list(set(dp[i][j]))
  print(min(dp[h-1][w-1]))

if __name__=='__main__':
  main()

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input=sys.stdin.readline

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)]
  
  c=[[0]*w for i in range(h)]
  for i in range(h):
    for j in range(w):
      c[i][j]=abs(a[i][j]-b[i][j])
  
  dp=[[[] for i in range(w)] for j in range(h)]
  dp[0][0].append(c[0][0])
  for i in range(h):
    for j in range(w):
      for k in dp[i-1][j]:
        dp[i][j].append(abs(k-c[i][j]))
        dp[i][j].append(k+c[i][j])
      for k in dp[i][j-1]:
        dp[i][j].append(abs(k-c[i][j]))
        dp[i][j].append(k+c[i][j])
      dp[i][j]=list(set(dp[i][j]))
  print(min(dp[h-1][w-1]))

if __name__=='__main__':
  main()

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

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)]
  
  c=[[0]*w for i in range(h)]
  for i in range(h):
    for j in range(w):
      c[i][j]=abs(a[i][j]-b[i][j])
  
  dp=[[[] for i in range(w)] for j in range(h)]
  dp[0][0].append(c[0][0])
  for i in range(h):
    for j in range(w):
      for k in range(len(dp[i-1][j])):
        dp[i][j].append(abs(dp[i-1][j][k]-c[i][j]))
        dp[i][j].append(dp[i-1][j][k]+c[i][j])
      for k in range(len(dp[i][j-1])):
        dp[i][j].append(abs(dp[i][j-1][k]-c[i][j]))
        dp[i][j].append(dp[i][j-1][k]+c[i][j])
      dp[i][j]=list(set(dp[i][j]))
  print(min(dp[h-1][w-1]))

if __name__=='__main__':
  main()

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()

Buggy python submission (verdict: Time Limit Exceeded):
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)]

c=[[0]*w for i in range(h)]
for i in range(h):
  for j in range(w):
    c[i][j]=abs(a[i][j]-b[i][j])

dp=[[() for i in range(w)] for j in range(h)]
dp[0][0]+=(c[0][0],)
for i in range(h):
  for j in range(w):
    for k in range(len(dp[i-1][j])):
      dp[i][j]+=(abs(dp[i-1][j][k]-c[i][j]),)
      dp[i][j]+=(dp[i-1][j][k]+c[i][j],)
    for k in range(len(dp[i][j-1])):
      dp[i][j]+=(abs(dp[i][j-1][k]-c[i][j]),)
      dp[i][j]+=(dp[i][j-1][k]+c[i][j],)
    dp[i][j]=tuple(set(dp[i][j]))
print(min(dp[h-1][w-1]))

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()

Buggy python submission (verdict: Time Limit Exceeded):
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)]

c=[[0]*w for i in range(h)]
for i in range(h):
  for j in range(w):
    c[i][j]=abs(a[i][j]-b[i][j])

dp=[[[] for i in range(w)] for j in range(h)]
dp[0][0].append(c[0][0])
for i in range(h):
  for j in range(w):
    for k in range(len(dp[i-1][j])):
      dp[i][j].append(abs(dp[i-1][j][k]-c[i][j]))
      dp[i][j].append(dp[i-1][j][k]+c[i][j])
    for k in range(len(dp[i][j-1])):
      dp[i][j].append(abs(dp[i][j-1][k]-c[i][j]))
      dp[i][j].append(dp[i][j-1][k]+c[i][j])
    dp[i][j]=list(set(dp[i][j]))
print(min(dp[h-1][w-1]))

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()

Buggy python submission (verdict: Time Limit Exceeded):
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)]

c=[[0]*w for i in range(h)]
for i in range(h):
  for j in range(w):
    c[i][j]=abs(a[i][j]-b[i][j])

dp=[[[0]*(80*(h+w)+1) for i in range(w)] for j in range(h)]
dp[0][0][c[0][0]]=1
for i in range(h):
  for j in range(w):
    for k in range(80*(i+j)+1):
      if dp[i-1][j][abs(k-c[i][j])]==1 or dp[i][j-1][abs(k-c[i][j])]==1 or dp[i-1][j][k+c[i][j]]==1 or dp[i][j-1][k+c[i][j]]:
        dp[i][j][k]=1

for i in range(80*(h+w)+1):
  if dp[h-1][w-1][i]==1:
    print(i)
    break

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input=sys.stdin.readline
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)]

c=[[0]*w for i in range(h)]
for i in range(h):
  for j in range(w):
    c[i][j]=abs(a[i][j]-b[i][j])

dp=[[[0 for k in range(80*(h+w)+1)] for i in range(w)] for j in range(h)]
dp[0][0][c[0][0]]=1
for i in range(h):
  for j in range(w):
    for k in range(80*(i+j)+1):
      if dp[i-1][j][abs(k-c[i][j])]==1 or dp[i][j-1][abs(k-c[i][j])]==1 or dp[i-1][j][k+c[i][j]]==1 or dp[i][j-1][k+c[i][j]]:
        dp[i][j][k]=1

for i in range(80*(h+w)+1):
  if dp[h-1][w-1][i]==1:
    print(i)
    break

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()

Buggy python submission (verdict: Time Limit Exceeded):
import sys
input=sys.stdin.readline
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)]
c=[[0]*w for i in range(h)]
for i in range(h):
  for j in range(w):
    c[i][j]=abs(a[i][j]-b[i][j])
dp=[[[] for i in range(w)] for j in range(h)]
dp[0][0].append(c[0][0])
for i in range(h):
  for j in range(w):
    f=0
    if i<h-1:
      l=[]
      for k in range(len(dp[i][j])):
        if -160*80<=dp[i][j][k]+c[i+1][j]<=160*80:
          l.append(dp[i][j][k]+c[i+1][j])
        if -160*80<=l[k]-c[i+1][j]<=160*80:
          l.append(dp[i][j][k]-c[i+1][j])
      l=list(set(l))
      dp[i+1][j]=l+dp[i+1][j]
      dp[i+1][j]=list(set(dp[i+1][j]))
    f=0
    if j<w-1:
      l=[]
      for k in range(len(dp[i][j])):
        if -160*80<=dp[i][j][k]+c[i][j+1]<=160*80:
          l.append(dp[i][j][k]+c[i][j+1])
        if -160*80<=dp[i][j][k]-c[i][j+1]<=160*80:
          l.append(dp[i][j][k]-c[i][j+1])
      l=list(set(l))
      dp[i][j+1]=l+dp[i][j+1]
      dp[i][j+1]=list(set(dp[i][j+1]))
for i in range(len(dp[h-1][w-1])):
  dp[h-1][w-1][i]=abs(dp[h-1][w-1][i])
print(min(dp[h-1][w-1]))

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()

Buggy python submission (verdict: Time Limit Exceeded):
import copy
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)]
c=[[0]*w for i in range(h)]
for i in range(h):
  for j in range(w):
    c[i][j]=abs(a[i][j]-b[i][j])
dp=[[[] for i in range(w)] for j in range(h)]
dp[0][0].append(c[0][0])
for i in range(h):
  for j in range(w):
    f=0
    if i<h-1:
      l=[]
      for k in range(len(dp[i][j])):
        if -160*80<=dp[i][j][k]+c[i+1][j]<=160*80:
          l.append(dp[i][j][k]+c[i+1][j])
        if -160*80<=l[k]-c[i+1][j]<=160*80:
          l.append(dp[i][j][k]-c[i+1][j])
      l=list(set(l))
      dp[i+1][j]=l+dp[i+1][j]
      dp[i+1][j]=list(set(dp[i+1][j]))
    f=0
    if j<w-1:
      l=[]
      for k in range(len(dp[i][j])):
        if -160*80<=dp[i][j][k]+c[i][j+1]<=160*80:
          l.append(dp[i][j][k]+c[i][j+1])
        if -160*80<=dp[i][j][k]-c[i][j+1]<=160*80:
          l.append(dp[i][j][k]-c[i][j+1])
      l=list(set(l))
      dp[i][j+1]=l+dp[i][j+1]
      dp[i][j+1]=list(set(dp[i][j+1]))
for i in range(len(dp[h-1][w-1])):
  dp[h-1][w-1][i]=abs(dp[h-1][w-1][i])
print(min(dp[h-1][w-1]))

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()

Buggy python submission (verdict: Runtime Error):
import copy
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)]
c=[[0]*w for i in range(h)]
for i in range(h):
  for j in range(w):
    c[i][j]=abs(a[i][j]-b[i][j])
dp=[[[] for i in range(w)] for j in range(h)]
dp[0][0].append(c[0][0])
for i in range(h):
  for j in range(w):
    f=0
    if i<h-1:
      l=[]
      for k in range(len(dp[i][j])):
        if -80<=dp[i][j][k]+c[i+1][j]<=80:
          l.append(dp[i][j][k]+c[i+1][j])
        if -80<=l[k]-c[i+1][j]<=80:
          l.append(dp[i][j][k]-c[i+1][j])
      l=list(set(l))
      dp[i+1][j]=l+dp[i+1][j]
      dp[i+1][j]=list(set(dp[i+1][j]))
    f=0
    if j<w-1:
      l=[]
      for k in range(len(dp[i][j])):
        if -80<=dp[i][j][k]+c[i][j+1]<=80:
          l.append(dp[i][j][k]+c[i][j+1])
        if -80<=dp[i][j][k]-c[i][j+1]<=80:
          l.append(dp[i][j][k]-c[i][j+1])
      l=list(set(l))
      dp[i][j+1]=l+dp[i][j+1]
      dp[i][j+1]=list(set(dp[i][j+1]))
for i in range(len(dp[h-1][w-1])):
  dp[h-1][w-1][i]=abs(dp[h-1][w-1][i])
print(min(dp[h-1][w-1]))

Fixed submission:
import sys
input=sys.stdin.readline

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)]
  dp=[[[0]*(80*(h+w+1)+1) for i in range(w)] for j in range(h)]
  dp[0][0][abs(a[0][0]-b[0][0])]=1
  for i in range(h):
    for j in range(w):
      c=abs(a[i][j]-b[i][j])
      if i!=0 or j!=0:
        for k in range(80*(i+j+1)+1):
          dp[i][j][k]=dp[i-1][j][abs(k-c)]|dp[i-1][j][k+c]|dp[i][j-1][abs(k-c)]|dp[i][j-1][k+c]
  for i in range(80*(h+w+1)+1):
    if dp[h-1][w-1][i]==1:
      print(i)
      break

if __name__=='__main__':
  main()