#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n,i; char *a=new char[101]; memset(a,0,sizeof(char)*101); gets(a); n=strlen(a); for(i=n-1;i>=0;i--) { cout<<a[i]; } cout<<endl; delete []a; return 0; }