暴力

#include<bits/stdc++.h>
using namespace std;
int n;
int l = 0;
int dp;
void h(){
if(11 <= dp){
dp -= 11;
l += 1;
}else if(5 <= dp){
dp -= 5;
l += 1;
}else if(1 <= dp){
dp -= 1;
l += 1;
}
if(dp == 0){
cout << l;
return;
}else{
h();
}
}
int main(){
cin >> n;
dp = n;
h();
return 0;
}