StudentNumber CPCTF2019

Solve.java

import java.util.*;
public class Solve {
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    for(int i = 0; i < n; i++){
      char[] y = sc.next().toCharArray();
      char[] x = sc.next().toCharArray();
      int sum = 0;
      sum += Character.getNumericValue(y[0]) * 2;
      sum += Character.getNumericValue(y[1]) * 3;
      sum += Character.getNumericValue(x[0]) * 4;
      sum += Character.getNumericValue(x[1]) * 5;
      sum += Character.getNumericValue(x[2]) * 6;
      sum += Character.getNumericValue(x[3]) * 7;
      
      if (sum % 11 == Character.getNumericValue(x[4])) {
        System.out.println("YES");
      } else {
        System.out.println("NO");
      }
    }
  }
}