#include<bits/stdc++.h> #define int long long using namespace std; vector<int>c; bool judge(int n){ for(int i=0;i<c.size();i++){ if(c[i]==n){ return false; } } return true; } signed main() { int a[10],b[10]; for(int i=0;i<10;i++){ cin>>a[i]; b[i]=a[i]%42; } int cnt=0; for(int i=0;i<10;i++){ if(judge(b[i])){ c.push_back(b[i]); cnt++; } } cout<<cnt; }