#include<stdio.h>
#include<math.h>
int main()
{int a,b,c,x;
scanf("%d",&x);
a=x/100;
b=x/10%10;
c=x%10;
printf("%d\n",c*100+b*10+a);
return 0;
}
/**************************************************************
    Problem: 1272
    User: acm
    Language: C++
    Result: 正确
    Time:0 ms
    Memory:944 kb
****************************************************************/