Run ID:92145

提交时间:2024-09-28 14:08:23

#include<iostream> #include<cstdio> using namespace std; int main(){ int n,a,b,c,d; cin>>n; a =n%10; b = (n/10) %10; c = (n/100)%10; d = (n/1000)%10; cout<<a<<d<<c<<b; return 0; }