#include <iostream>
using namespace std;
#include <math.h>

int main(){
    int thang, soNgay, nam;
    string chuThang;
    cout<<"nam hien tai: "; cin>>nam;
    cout<<"thang = "; cin>>thang;
    if( thang > 12 || thang < 1) cout<<"Thang khong hop le";
    if (thang > 1 && thang <12){
     switch (thang){
        case 1:{
            chuThang = "Thang mot";
            soNgay = 31;
            break;
        }
        case 2:{
            chuThang = "Thang hai";
            soNgay = 28;
            if (nam % 4 == 0 && nam % 400 != 0){
                soNgay++;
                cout<<"La nam nhuan"<<"\n";
            }
            break;
        }
        case 3:{
            chuThang = "Thang ba";
            soNgay = 30;
            break;
        }
        case 4:{
            chuThang = "Thang tu";
            soNgay = 31;
            break;
        }
        case 5:{
            chuThang = "Thang nam";
            soNgay = 30;
            break;
        }
        case 6:{
            chuThang = "Thang sau";
            soNgay = 31;
            break;
        }
        case 7:{
            chuThang = "Thang bay";
            soNgay = 30;
            break;
        }
        case 8:{
            chuThang = "Thang tam";
            soNgay = 31;
            break;
        }
        case 9:{
            chuThang = "Thang chin";
            soNgay = 31;
            break;
        }
        case 10:{
            chuThang = "Thang muoi";
            soNgay = 30;
            break;
        }
        case 11:{
            chuThang = "Thang muoi mot";
            soNgay = 31;
            break;
        }
        case 12:{
            chuThang = "Thang muoi hai";
            soNgay = 30;
            break;
        }
     }
     cout<<chuThang<<" co "<<soNgay<<" ngay";
    }
    return 0;
}