#include <stdio.h>
int main()
{
    int n,a,b,c,m;
    scanf("%d",&n);
    a=n/100;
    b=(n-a*100)/10;
    c=n%10; 
    m=c*100+b*10+a;
    if(c!=0)
     printf("%d",m);
    else
    printf("0%d",m);
    return 0;
}