// Tom Wexler

import java.util.*;
import java.io.*;

public class H {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int cases = input.nextInt();
        for (int i = 1; i <= cases; i++) {
            int tarAngle = input.nextInt();
            String op = input.next();
            int hour = input.nextInt();
            int curAngle = 360-hour*30;
            double time = 0; //(in minutes)
            //minute hand moves 6 degree per minute
            //hour hand moves .5 degree per minute
            if (op.equals("after") && curAngle < tarAngle) {
                time = (tarAngle-curAngle)/5.5;
            }
            if (op.equals("after") && curAngle >= tarAngle) {
                time = (360+tarAngle-curAngle)/5.5;
            }
            if (op.equals("til") && curAngle <= tarAngle) {
                time = 720+(tarAngle-curAngle-360)/5.5;
            }
            if (op.equals("til") && curAngle > tarAngle) {
                time = 720+(tarAngle-curAngle)/5.5;
            }
            int h = (hour+((int)(time/60)))%12;
            if (h <= 0) h = h+12;
            int m =((int)time)%60;
            int s =((int)((time*60)+.5))%60;
            System.out.println("Case "+i+": "+h+":"+String.format("%02d",m)+":"+String.format("%02d",s));
        }   
    }
}