easy

#include<stdio.h>
#include<map>

std::map<int,const char*>mp={{1,"Monday"},{2,"Tuesday"},{3,"Wednesday"},
{4,"Thursday"},{5,"Friday"},{6,"Saturday"},{0,"Sunday"}};
int main(){
    int i;
    scanf("%d",&i);
    puts(mp[(1+i)%7]);
    return 0;
}