//Tanggal   : 27-11-2014 sampai 28-11-2014

#include <iostream>
#include <stdlib.h>

using namespace std;

void kataDariAngka(char);
bool jikaAngka(string);
void satuan(string, int);
void puluhan(string, int, int);
void ratusan(string, int, int, int);

string bil;
int p_bil;

int main(){
    int i, j, k, p3, p=0;
    bool salah, nol;
    char lagi;

    do{
        system("cls");
        salah = false;
        nol = false;

        cout << "Masukkan bilangan bulat = ";
        cin.sync(); cin.clear();
        getline(cin, bil);

        p_bil = bil.length();

        if(jikaAngka(bil)){

            if(bil[0]=='0'){
                salah = true;
            }
            if(salah==false){
                if(p_bil>15){
                    cout << "Jangan melebihi 999 trilyun 999 milyar 999 juta 999 ribu 999 !!" << endl;
                }else{
                    if(p_bil%3==0){
                        p3 = p_bil/3;
                    }else{
                        p3 = p_bil/3+1;
                        p = p_bil%3;
                    }

                    for(i=p3; i>0; i--){
                        if(p==1){
                            satuan(bil, 0);
                        }else if(p==2){
                            puluhan(bil, 0, 1);
                        }else{
                            ratusan(bil, p_bil-(i*3), p_bil-(i*3)+1, p_bil-(i*3)+2);
                            if(i>1 && bil[p_bil-(i*3)+3]=='0' && bil[p_bil-(i*3)+4]=='0' && bil[p_bil-(i*3)+5]=='0' && bil[p_bil-(i*3)]=='0' && bil[p_bil-(i*3)+1]=='0' && bil[p_bil-(i*3)+2]=='0'){
                                nol=true;
                            }else if(i>1 && (bil[p_bil-(i*3)]!='0' || bil[p_bil-(i*3)+1]!='0' || bil[p_bil-(i*3)+2]!='0')){
                                nol=false;
                            }
                        }
                        if(i==5){
                            cout << "trilyun ";
                        }else if(i==4 && nol==false){
                            cout << "milyar ";
                        }else if(i==3 && nol==false){
                            cout << "juta ";
                        }else if(i==2 && nol==false){
                            cout << "ribu ";
                        }
                        p=0;
                    }
                    cout << endl;
                }
            }else{
                cout << "Jangan gunakan nol di depan !!" << endl;
            }
        }else{
            cout << "Inputan salah !!" << endl;
        }

        cout << endl << "Ingin lagi? (Y/N) = ";
        cin >> lagi;
        cout << endl;
    }while(lagi=='Y' || lagi=='y');

    return 0;
}

void satuan(string bil, int s=0){
    kataDariAngka(bil[s]);
}

void puluhan(string bil=0, int p=0, int s=0){
    if(bil[p]=='1' && bil[s]=='0'){
        cout << "sepuluh ";
    }else if(bil[p]=='1' && bil[s]=='1'){
        cout << "sebelas ";
    }else if(bil[p]=='1' && bil[s]>'1'){
        kataDariAngka(bil[s]);
        cout << "belas ";
    }else if(bil[p]=='0'){
        kataDariAngka(bil[s]);
    }else{
        kataDariAngka(bil[p]);
        cout << "puluh ";
        kataDariAngka(bil[s]);
    }
}

void ratusan(string bil, int r=0, int p=0, int s=0){
    if(bil[r]=='1'){
        cout << "seratus ";
        puluhan(bil, p, s);
    }else if(bil[r]=='0'){
        puluhan(bil, p, s);
    }else{
        kataDariAngka(bil[r]);
        cout << "ratus ";
        puluhan(bil, p, s);
    }
}

void kataDariAngka(char c){
    if(c=='1'){
        cout << "satu";
    }else if(c=='2'){
        cout << "dua";
    }else if(c=='3'){
        cout << "tiga";
    }else if(c=='4'){
        cout << "empat";
    }else if(c=='5'){
        cout << "lima";
    }else if(c=='6'){
        cout << "enam";
    }else if(c=='7'){
        cout << "tujuh";
    }else if(c=='8'){
        cout << "delapan";
    }else if(c=='9'){
        cout << "sembilan";
    }

    if(!(c=='0')){
        cout << " ";
    }
}

bool jikaAngka(string cek){
    bool berartiAngka=true;
    int panjang=cek.length();

    if(panjang==0||cek[0]==' '){
        berartiAngka=false;
    }else{
        for(int i=0;i<panjang;i++){
            char x=cek[i];
            if(x<'0'||x>'9'){
                berartiAngka=false;
                break;
            }
        }
    }

    return berartiAngka;
}