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#include <iostream>
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using namespace std;
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int main() {
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    int n;
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    cin>>n;
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    int numberOfBills=0;
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    numberOfBills+=n/100;
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    n%=100;
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    numberOfBills+=n/20;
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    n%=20;
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    numberOfBills+=n/10;
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    n%=10;
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    numberOfBills+=n/5;
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    n%=5;
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    numberOfBills+=n;
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    cout<<numberOfBills;
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}