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

#define MAXS 80

int getindex( char *s );

int main()
{
    int n;
    char s[MAXS];

    scanf("%s", s);
    n = getindex(s);
    if ( n==-1 ) printf("wrong input!\n");
    else printf("%d\n", n);

    return 0;
}
int getindex(char *s)
{
      const char *p[7]={"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"};
    int i,IF=0;
    for(i=0;i<7;i++)
    {
        if(strcmp(*s,p[i])==0)
        {
            return i;
            break;
        }
        printf("%s\n",p[i]);
    }
    if(IF==0)
        return -1;
}

//26    26    C:\Users\ASUS\Documents\未命名11.cpp    [Error] invalid conversion from 'char' to 'const char*' [-fpermissive]