Problem:
Score : 200 points

Problem Statement

Given are two strings S and T.

Let us change some of the characters in S so that T will be a substring of S.

At least how many characters do we need to change?

Here, a substring is a consecutive subsequence. For example, xxx is a substring of yxxxy, but not a substring of xxyxx.

Constraints

The lengths of S and T are each at least 1 and at most 1000.

The length of T is at most that of S.

S and T consist of lowercase English letters.

Input

Input is given from Standard Input in the following format:

S
T

Output

Print the minimum number of characters in S that need to be changed.

Sample Input 1

cabacc
abc

Sample Output 1

1

For example, changing the fourth character a in S to c will match the second through fourth characters in S to T.

Since S itself does not have T as its substring, this number of changes - one - is the minimum needed.

Sample Input 2

codeforces
atcoder

Sample Output 2

6

Solution in Python (3.8.2) (judge verdict: Wrong Answer)

import sys

input = sys.stdin.readline



S = input()
T = input()

S = S.replace('\n','')
T = T.replace('\n','')

s_list = list(S)
t_list = list(T)

itti = 0
max_itti = 0
for s in s_list:
    if max_itti == len(t_list):
        break
    if s == t_list[itti]:
        itti += 1
        max_itti = max(max_itti,itti)
    else:
        itti = 0
flag = False

if max_itti == 0:
    for s in s_list:
        for t in t_list:
            if s == t:
                max_itti = 1
                flag = True
            if flag:
                break
        if flag:
            break
                

print(len(t_list) - max_itti)