#include <iostream>
#include <string>
#include <vector>

using namespace std;

#define DEBUG(x) cout << ">" << #x << ": " << x << endl
typedef vector<string> vs;

int N;
int digit(int i) {
	return N%(10*i);
}

int main() {
while ( cin >> N ) {
	int ten = 10;

	for ( ;; ten *= 10 ) {
		if ( N % ten )
		{
			cout << N-1*ten/10 << endl;
			break;
		}
	}
}
return 0;
}