s1 = input() s2 = input() n1 = len(s1) n2 = len(s2) dp = [[0 for _ in range(n2 + 1)] for _ in range(n1 + 1) ] # print(dp) for i in range(n1+1): dp[i][0] = i for j in range(n2+1): dp[0][j] = j # print(dp) for i in range(1,n1+1): for j in range(1,n2+1): if s1[i-1] == s2[j-1]: ...