#include <iostream>
#include <conio.h>
using namespace std;
int main()

{
    unsigned int a,n;
    cout<<"moi nhap n ";cin>>n;
    if ((n>=10)&&(n<=100))
    {
        a=n%10;
        n=n/10;
        switch (n)
        {
        case 1 : cout<<"muoi"; break;
        case 2 : cout<<" hai muoi"; break;
        case 3 : cout<<" ba muoi"; break;
        case 4 : cout<<" bon muoi"; break;
        case 5 : cout<<" nam muoi"; break;
        case 6 : cout<<" sau muoi"; break;
        case 7 : cout<<" bay muoi"; break;
        case 8 : cout<<" tam muoi"; break;
        case 9 : cout<<" chin muoi"; break;
        }
        switch (a)
        {
        case 1 : cout<<" mot";break;
        case 2 : cout<<" hai";break;
        case 3 : cout<<" ba";break;
        case 4 : cout<<" tu";break;
        case 5 : cout<<" nam";break;
        case 6 : cout<<" sau";break;
        case 7 : cout<<" bay";break;
        case 8 : cout<<" tam";break;
        case 9 : cout<<" chin";break;
        }
    }
    else if (n<10)
    {
        switch(n)
        {
        case 1 : cout<<"mot";break;
        case 2 : cout<<"hai";break;
        case 3 : cout<<"ba";break;
        case 4 : cout<<"bon";break;
        case 5 : cout<<"nam";break;
        case 6 : cout<<"sau";break;
        case 7 : cout<<"bay";break;
        case 8 : cout<<"tam";break;
        case 9 : cout<<"chin";break;
        }

    }
     getch();
}