#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 a,b,c,d,e,f; cin>>a; b=a/10000; c=a%10000/1000; d=a%1000/100; e=a%100/10; f=a%10; cout<<f<<e<<d<<c<<b; return 0; }