Buggy python submission (verdict: Time Limit Exceeded):
import sys
def main():
    input = sys.stdin.readline
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [[set([]) for _ in range(M) for _ in range(W)] for _ in range(H)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                l[i][j].add(AB[0][0])
            else:
                t = AB[i][j]
                if i > 0:
                    for k in l[i-1][j]:
                        l[i][j].add(k+t)
                        l[i][j].add(abs(k-t))
                if j > 0:
                    for k in l[i][j-1]:
                        l[i][j].add(k+t)
                        l[i][j].add(abs(k-t))
    return min(l[i][j])
print(main())



Fixed submission:
import sys
def main():
    input = sys.stdin.readline
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [set([]) for _ in range(W)]
    lt = [set([]) for _ in range(W)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                lt[j].add(AB[0][0])
            else:
                t = AB[i][j]
                if i > 0:
                    for k in l[j]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
                if j > 0:
                    for k in lt[j-1]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
        l = lt
        lt = [set([]) for _ in range(W)]
    return min(l[-1])
print(main())

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [[[0] * (M+1) for _ in range(W)] for _ in range(H)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                l[i][j][AB[0][0]] = 1
            else:
                t = AB[i][j]
                for k in range(M+1):
                    if i > 0 and l[i-1][j][k] == 1:
                        l[i][j][k+t] = 1
                        l[i][j][abs(k-t)] = 1
                    if j > 0 and l[i][j-1][k] == 1:
                        l[i][j][k+t] = 1
                        l[i][j][abs(t-k)] = 1
    for k in range(M):
        if l[-1][-1][k] == 1:
            return k
print(main())



Fixed submission:
import sys
def main():
    input = sys.stdin.readline
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [set([]) for _ in range(W)]
    lt = [set([]) for _ in range(W)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                lt[j].add(AB[0][0])
            else:
                t = AB[i][j]
                if i > 0:
                    for k in l[j]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
                if j > 0:
                    for k in lt[j-1]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
        l = lt
        lt = [set([]) for _ in range(W)]
    return min(l[-1])
print(main())

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [[[0] * (M+1) for _ in range(W)] for _ in range(H)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                l[i][j][AB[0][0]] = 1
            else:
                t = AB[i][j]
                for k in range(M+1):
                    if i > 0 and l[i-1][j][k] == 1:
                        if k + t <= M:
                            l[i][j][k+t] = 1
                        if k - t >= 0:
                            l[i][j][k-t] = 1
                        if t - k >= 0:
                            l[i][j][t-k] = 1
                    if j > 0 and l[i][j-1][k] == 1:
                        if k + t <= M:
                            l[i][j][k+t] = 1
                        if k - t >= 0:
                            l[i][j][k-t] = 1
                        if t - k >= 0:
                            l[i][j][t-k] = 1
    for k in range(M):
        if l[-1][-1][k] == 1:
            return k
print(main())



Fixed submission:
import sys
def main():
    input = sys.stdin.readline
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [set([]) for _ in range(W)]
    lt = [set([]) for _ in range(W)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                lt[j].add(AB[0][0])
            else:
                t = AB[i][j]
                if i > 0:
                    for k in l[j]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
                if j > 0:
                    for k in lt[j-1]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
        l = lt
        lt = [set([]) for _ in range(W)]
    return min(l[-1])
print(main())

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [[[0] * (M+1) for _ in range(W)] for _ in range(H)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                l[i][j][AB[0][0]] = 1
            else:
                t = AB[i][j]
                for k in range(M+1):
                    if i > 0 and l[i-1][j][k] == 1:
                        if k + t <= M:
                            l[i][j][k+t] = 1
                        if k - t >= 0:
                            l[i][j][k-t] = 1
                        if t - k >= 0:
                            l[i][j][t-k] = 1
                    if j > 0 and l[i][j-1][k] == 1:
                        if k + t <= M:
                            l[i][j][k+t] = 1
                        if k - t >= 0:
                            l[i][j][k-t] = 1
                        if t - k >= 0:
                            l[i][j][t-k] = 1
    for k in range(M):
        if l[-1][-1][k] == 1:
            return k
print(main())



Fixed submission:
import sys
def main():
    input = sys.stdin.readline
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [set([]) for _ in range(W)]
    lt = [set([]) for _ in range(W)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                lt[j].add(AB[0][0])
            else:
                t = AB[i][j]
                if i > 0:
                    for k in l[j]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
                if j > 0:
                    for k in lt[j-1]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
        l = lt
        lt = [set([]) for _ in range(W)]
    return min(l[-1])
print(main())

Buggy python submission (verdict: Time Limit Exceeded):
def main():
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * H * W
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    l = [[[0] * (M+1) for _ in range(W)] for _ in range(H)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                t = abs(A[0][0] - B[0][0])
                l[i][j][t] = 1
            else:
                t = abs(A[i][j] - B[i][j])
                for k in range(M+1):
                    if i > 0 and l[i-1][j][k] == 1:
                        if k + t <= M:
                            l[i][j][k+t] = 1
                        if k - t >= 0:
                            l[i][j][k-t] = 1
                        if t - k >= 0:
                            l[i][j][t-k] = 1
                    if j > 0 and l[i][j-1][k] == 1:
                        if k + t <= M:
                            l[i][j][k+t] = 1
                        if k - t >= 0:
                            l[i][j][k-t] = 1
                        if t - k >= 0:
                            l[i][j][t-k] = 1
    for k in range(M):
        if l[-1][-1][k] == 1:
            return k
print(main())



Fixed submission:
import sys
def main():
    input = sys.stdin.readline
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [set([]) for _ in range(W)]
    lt = [set([]) for _ in range(W)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                lt[j].add(AB[0][0])
            else:
                t = AB[i][j]
                if i > 0:
                    for k in l[j]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
                if j > 0:
                    for k in lt[j-1]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
        l = lt
        lt = [set([]) for _ in range(W)]
    return min(l[-1])
print(main())

Buggy python submission (verdict: Runtime Error):
def main():
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * H * W
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    l = [[[0] * (M+1) for _ in range(W)] for _ in range(H)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                t = abs(A[0][0] - B[0][0])
                l[i][j][t] = 1
            else:
                t = abs(A[i][j] - B[i][j])
                for k in range(M+1):
                    if i > 0 and l[i-1][j][k] == 1:
                        if k + t <= M:
                            l[i][j][k+t] = 1
                        if k - t >= 0:
                            l[i][j][k-t] = 1
                        if t - k >= 0:
                            l[i][j][t-k] = 1
                    if j > 0 and l[i][j-1][k] == 1:
                        if k + t <= M:
                            l[i][j][k+t] = 1
                        if k - t >= 0:
                            l[i][j][k-t] = 1
                        if t - k >= 0:
                            l[i][j][t-k] = 1
    for k in range(M):
        if l[-1][-1][k] == 1:
            return k
print(main())



Fixed submission:
import sys
def main():
    input = sys.stdin.readline
    H, W = map(int, input().split())
    A = []
    B = []
    M = 80 * (H + W)
    for _ in range(H):
        a = tuple(map(int, input().split()))
        A.append(a)
    for _ in range(H):
        b = tuple(map(int, input().split()))
        B.append(b)
    AB = [[0] * W for _ in range(H)]
    for i in range(H):
        for j in range(W):
            AB[i][j] = abs(A[i][j] - B[i][j])
    l = [set([]) for _ in range(W)]
    lt = [set([]) for _ in range(W)]
    for i in range(H):
        for j in range(W):
            if i == 0 and j == 0:
                lt[j].add(AB[0][0])
            else:
                t = AB[i][j]
                if i > 0:
                    for k in l[j]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
                if j > 0:
                    for k in lt[j-1]:
                        lt[j].add(k+t)
                        lt[j].add(abs(k-t))
        l = lt
        lt = [set([]) for _ in range(W)]
    return min(l[-1])
print(main())