#include <bits/stdc++.h> using namespace std; int main() { int a; cin>>a; //12 int ge=a%10;//5 int qiansi=a/10;//1234 int shi=qiansi%10;//4 int qiansan=qiansi/10;//123 int bai=qiansan%10;//3 int qianer=qiansan/10;//12 int qian=qianer%10;//2 int wan=qianer/10;//1 cout<<ge<<shi<<bai<<qian<<wan; return 0; }