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: Runtime Error)


T,S=input().split()

Tlist=list(T)
Slist=list(S)

TL=len(Tlist)
SL=len(Slist)

c=0
ans=SL

if S in T :
    ans=0
else:
    for i in range(TL-SL):
        for j in range(SL):
            if Tlist[j+i]!=Slist[j]:
                c=c+1
        if ans>c:
            ans=c
        c=0
            
        
print(ans)