#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[2] = {};
    for (int i = 0; i < 2; i++) {
        k[i] += !strcmp(s[i], "Sat") + !strcmp(s[i], "Sun");
    }
    if (k[0] == 0) printf("8/31");
    else printf("8/%d\n", 31 + k[0] + k[1]);
    
    return 0;
}