#include <bits/stdc++.h> using namespace std; int main() { int a,b,c,d,e,f,g,h,i,j; cin>>a;//12345 b=a/10; //1234 c=a%10;//5 d=b/10;//123 e=b%10;//4 f=d/10;//12 g=d%10;//3 i=f/10;//1 j=f%10;//2 cout<<c<<e<<g<<j<<i; return 0; }