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 JavaScript (Node.js 12.16.1) (judge verdict: Runtime Error)

//let input = "codeforces\natcoder";

function main(input){
  input = input.trim();
  list = input.split("\n");
  let d = list[0];
  let s = list[1];
  console.log(d + " " + s);
  let answer = 1000;
  let temp = 0;
  for(let i=0; i<d.length - s.length; i++){
    temp = 0;
    for(let j=0; j<s.length; j++){
      let dStr = d.substr(i+j,1);
      let sStr = s.substr(j,1);
      if(dStr===sStr){
        //console.log(dStr + " " + sStr + " onaji");
      }else{
        //console.log(dStr + " " + sStr + " tigau");
        temp++;
      }
    } // j loop
    if(temp < answer){answer = temp;}
    //console.log(" ");
  } // i loop
  console.log(answer);
}
//main(input);
main(require("fs").readFileSync("dev/stdin","utf8"));