112345

#include <bits/stdc++.h> 
using namespace std; 
int main() { 
int s; 
s = 0; 
int a[15]; 
int b[15]; 
for (int i = 1; i <= 10; i++) { 
cin >> a[i]; 
} for (int i = 1; i <= 10; i++) { 
b[i] = a[i] % 42; } for (int i = 1; i <= 10; i++) { 
for (int j = i + 1; j <= 10; j++) { 
if (b[i] == b[j]) { b[j] = -1; } } } for (int i = 1; i <= 10; i++) { if (b[i] != -1) s++; 
} 
cout << s; }