#include <stdio.h>
#include <string.h>

int
main(int argc, char *argv[])
{
    char s[2][5];
    scanf("%s %s", s[0], s[1]);
    
    int k = 0;
    for (int i = 0; i < 2; i++) {
        k += !strcmp(s[i], "Sat") + !strcmp(s[i], "Sun");
    }
    printf("8/%d\n", 31 + k);
    
    return 0;
}