#include <bits/stdc++.h>
using namespace std;
#define GG ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
int main () { GG;
int n, DU[5]={1,5,10,20,100},ans=0,x;
cin>>n;
for(int i=4;i>=0;i--)
{ x=n/DU[i];
ans+=x;
n-=x*DU[i];
//cout<<x<<" ";
}
cout<<ans<<"\n";
return 0;}
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