using System;

public class Program

{

    const int ts = 19;

    const int wt1 = 6;

    const int wt2 = 23;

    public static void Main()

    {

        const int t1 = 18;

        const int t2 = 22;

        const int t3 = 1;

        const int t4 = 7;

        isInSleepMode(t1);

        isInSleepMode(t2);

        isInSleepMode(t3);

        isInSleepMode(t4);

    }

    static void isInSleepMode(int time)

    {

        var isAfterSleep1 = isAfterSleep(time,wt1);

        var isAfterSleep2 = isAfterSleep(time,wt2);

        var isBeforeWake1 = isBeforeWake(time,wt1);

        var isBeforeWake2 = isBeforeWake(time,wt2);

        var isInSleepMode1 = isAfterSleep1 && isBeforeWake1;

        var isInSleepMode2 = isAfterSleep2 && isBeforeWake2;

        Console.WriteLine("time="+time+":");

        Console.WriteLine("\t19-6 -> "+isAfterSleep1+" && "+isBeforeWake1+" = "+ isInSleepMode1);

        Console.WriteLine("\t19-23 -> "+isAfterSleep2+" && "+isBeforeWake2+" = "+ isInSleepMode2);

        Console.WriteLine("===========================");

    }

    static bool isAfterSleep(int time, int wt)

    {

        return ts<wt

            ? time > ts

            : time < ts - 24;

    }

    static bool isBeforeWake(int time, int wt)

    {

        return ts<wt

            ? time < wt

            : true;

    }

}