有无大佬指教一下为啥全部评测点都是RE，样例能运行出结果呀

import numpy as np

def main():
    n,m = map(int,input().split(' '))
    score = []
    for row in range(n):
        num = input()
        number = [int(each) for each in num.split(' ')]
        score.append(number)
    f = np.zeros((120,60,60))
    for i in range(1,n+m-1):
        for j in range(n):
            for k in range(j + 1,n):
                if i - j < 0 or i - k < 0 or i - j > m - 1 or i - k > m - 1:
                    continue
                else:
                    f[i][j][k] = score[j][i-j] + score[k][i-k] + \
                        max(f[i-1][j][k],f[i-1][j-1][k],f[i-1][j][k-1],f[i-1][j-1][k-1])

    print(int(f[n+m-3][n-2][n-1]))

if __name__ == "__main__":
    main()