백준 26561 자바 - Population

// Population
package Bronze_IV_4;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Ex26561 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        int n = Integer.parseInt(br.readLine());

        for (int i = 0; i < n; i++) {
            StringTokenizer st = new StringTokenizer(br.readLine());

            int p = Integer.parseInt(st.nextToken());
            int t = Integer.parseInt(st.nextToken());

            int bornTime = t / 4;
            int dieTime = t / 7;

            System.out.println(p + bornTime - dieTime);
        }
    }
}