#include <stdio.h>
int main()
{
char i, mod[42] = {};
short a;
for (i = 0; i < 10; i++) {
scanf("%hd", &a);
mod[a % 42]++;
}
a = 0;
for (i = 0; i < 42; i++)
if (mod[i])
a++;
printf("%hd\n", a);
return 0;