#include <stdio.h>
int main()
{
    int n,m;
    while (scanf("%d",&n) && n!=-1)
    {
        n = (n+270)%360;
        m = n / 30;
        m=12-m;
        if (n%30==0) printf("Exactly %d o'clock\n",m%12);
        else printf("Between %d o'clock and %d o'clock\n",(12+m-1)%12,m%12);
    }
    return 0;
}