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 C (GCC 9.2.1) (judge verdict: Accepted)

#include<stdio.h>
int main(void){
	int i,j;
	int t0=100000,t1=0;
	char S[1001],T[1001];
	scanf("%s",&S);
	scanf("%s",&T);
	
	for(i=0;i< (strlen(S)-strlen(T)+1);i++){
		for(j=0;j<strlen(T);j++){
			if(S[i+j] != T[j])
				t1+=1;
		}
		if(t0 > t1)
			t0 =t1;
		t1=0;
	}
	printf("%d",t0);
	
	return 0;
}