#include <stdio.h>

int month[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
char *week[] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};

int main() {
int y,m,d;

    scanf("%d %d %d", &y, &m, &d);
    if (y < 2000 || y > 2010 || m < 1 || m > 12 || d < 1 || d > month[m])
    {
        printf("INPUT ERROR!\n");  
    }else {
        
    printf("%d. %d\n", y, m);
    printf("sun mon tue wed thu fri sat\n");
    // for(int i = 0;i > 1;i <31;i++){
    //     printf("%d",i);
    // }
        
    
    }
    }




// int leapChk(){
//     int leapyear = 0;

//     if (y % 400) {
//         leapyear = 1;
//     }
//     else if(y % 4 == 0 && y % 100 != 0){
//         leapyear = 1;
//     }
// }