题解

#include<bits/stdc++.h>
#define ll long long                                                        //防伪标识
#define MAXN 1005
#define maxn 10005
#define MAXM 10000
#define maxm 1000005
#define Y1 "YES"<<endl
#define N1 "NO"<<endl
#define Y2 "yes"<<endl
#define N2 "no"<<endl
#define Y3 "Yes"<<endl
#define N3 "No"<<endl
using namespace std;
string n;
int main(){
	cin>>n;
	for(int i = n.size()-1;i>=0;i--)
		cout<<n[i]<<" ";
	return 0;
}