#include<bits/stdc++.h> using namespace std; int main(){链接描述 int n,a,b,c; cin>>n; a=n%10; b=(n/10)%10; c=n/100; cout<<a<<" "<<b<<" "<<c<<endl; return 0; }

#include <bits/stdc++.h> using namespace std; int main(){ int a; cin>>a; while(a>0){ int b=a%10; a/=10; cout<<b<<" "; } return 0; }

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