#include<iostream> #include<cstdio> #include<cstring> #include<cmath> #include<iomanip> using namespace std; int main() { int a,a1,a2,a3,a4; cin>>a; a1=a%10; a2=a/10%10; a3=a/100%10; a4=a/1000%10; a1=char(a1); a2=char(a2); a3=char(a3); a4=char(a4); cout<<a4<<" "<<a3<<" "<<a2<<" "<<a1; return 0; }