tijay

#include<iostream>
int main(){
    int n;
    std::cin>>n;
    switch((n+1)%7){
        case 1:std::cout<<"monday";break;
        case 2:std::cout<<"tuesday";break;
        case 3:std::cout<<"wednesday";break;
        case 4:std::cout<<"thursday";break;
        case 5:std::cout<<"friday";break;
        case 6:std::cout<<"saturday";break;
        default:std::cout<<"sunday";
    }
    return 0;
}