#include <iostream>
using namespace std;
int main() {
int num;
cout << "Nhap vao mot so nguyen co 2 chu so: ";
cin >> num;
int hang_chuc = num / 10;
int hang_don_vi = num % 10;
cout << "Chu so hang chuc: " << hang_chuc << endl;
cout << "Chu so hang don vi: " << hang_don_vi << endl;
return 0;
}