import acm.program.*;

public class erg1 extends Program {

    public void run() {

        println("?o programma ayto ypologizei tis meres poy perasan apo shmera apo mia parelthontikh hmeromhnia kathws k thn poia htan h mera thn hmeromhnia poy epileksate");
        println("Smhera");

        int ims = readInt("Mera se arithmo: "); //?µe?a
        int mins = readInt("Mhnas se arithmo: "); //???a?
        int xrs = readInt("Xronos: "); // ??????

        println("Parakatw epilekste mia parelthontikh hmeromhnia gia na ypologisete tis meres poy exoyn perasei: ");

        int im = readInt("Mera se arithmo: "); //?µe?a
        int min = readInt("Mhnas se arithmo: "); //???a?
        int xr = readInt("Xronos: "); // ?????

        //Etsi doyleyeis me synarthseis poy exoyn return
        int synoloImerwn = hmtoymhna(min);
        if(synolImerwn != -1){

            println("Egine kapoio lathos");

        }

   }

    private int hmtoymhna(int x){

        switch(x){
            case 1:
            case 3:
            case 5:
            case 7:
            case 8:
            case 10:
            case 12:
                return 31;
            case 4:
            case 6:
            case 9:
            case 11:
                return 30;
            case 2:
                return 28;
        default:
        return -1;
        }

    }
}