#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("atestat.in");
ofstream fout("atestat.out");
int main()
{
    int n,cn=n,x=0,min=99999999,p=1;
    fin>>n;
    while(n>9){
        x=(n/10)*p+cn%p;
        if(x<min)min=x;
        n/=10;
        p*=10;
    }
    fout<<min;
    return 0;

}