#include<bits/stdc++.h>
using namespace std;

int main()
{
    int num,b,g,s;
    cin>>num;
    g=num%10;
    s=num/10%10;
    b=num/100%10%10;
    if(g==0 && s!=0)
    {
        cout<<s<<b;
    }
    else if(g==0 && s==0)
    {
        cout<<b%10;
    }
    else
    {
        cout<<g<<s<<b;
    }
    retrun 0;
}

#include<iostream>
#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{
	int y;
	int x;
	cin>>x;
	y=(x/100)+(x/10%10*10)+(x%10*100);
	cout<<y<<endl; 
	return 0 ;
}

#include<iostream>
#include<cstdlib>
using namespace std;
int main()
{
	int y;
	int x;
	cin>>x;
	y=(x/100)+(x/10%10*10)+(x%10*100);
	cout<<y<<endl; 
	return 0 ;
}