/*juba*/
#include <bits/stdc++.h>
#define juba ios::sync_with_stdio(false);cin.tie(0);
using namespace std;
int main() {
juba ;
int t ;
cin >> t ;
if (t <= 10000-1) cout << t ;
else if (t <= 100000-1) {
t = t / 100 ;
cout << t * 100 ;
}
else if (t <= 1000000-1) {
t = t / 1000 ;
cout << t * 1000 ;
}
else if (t <= 10000000-1) {
t = t / 10000 ;
cout << t * 10000 ;
}
else if (t <= 100000000-1) {
t = t / 100000 ;
cout << t * 100000 ;
}
else if (t <= 1000000000-1) {
t = t / 1000000 ;
cout << t * 1000000 ;
}
else {
t = t / 10000000 ;
cout << t * 10000000 ;
}
}
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