int main(int argc, char** argv) {

int integer;
int piece;
string roman;

cout << "Arabic to Roman numeral conversion." << endl;
cout << "Input the integer to convert." << endl;
cin >> integer;

if (integer < 1000 || integer > 3000) {
    cout << integer << " is Out of Range!";

}
else {
    if (integer >=1000){
    piece = (integer / 1000);

    for (int i = 0; i < piece; i++) {
        roman += 'M';}

    }
    integer %= 1000;
    }
    if(integer >= 100){
      piece =  (integer / 100);}
    if(piece == 9){
      roman += 'CM';}
    else if (piece >= 5 ){
      roman += 'D';
        for (int i = 0; i < piece - 5; i++){
          roman += 'C';}
    }
    else if(piece == 4){
      roman += 'CD';}
    else if (piece >= 1){
       for (int i = 0; i < piece - 5; i++){
       roman += "C";}
    }
    integer %= 100;
    }
    if (integer >= 10){
     piece = (integer/10);}
    if (piece == 9){
      roman += 'XC';}
    else if(piece >= 5){
      roman += 'L';
        for (int i = 0; i < piece - 5; i++){
         roman +='X';
        }
    }
    else if (piece == 4) {
      roman += 'XL';
    }
    else if(piece >= 1){
        for(int i = 0; i < piece; i++){
            roman += 'X';
        }
    }
    integer %= 10;
    }
    if (integer >= 1){
    piece = integer;
    if (piece == 9){
       roman += 'IX';

    else if(piece >= 5) {
        roman += 'V';

        for (int i=0; i <piece -5; i++){
            roman += 'I';
            else if (piece == 4){
                roman += 'IV';}

            else if(piece >= 1){
                for (int i = 0; i < piece; i++){
                    roman += 'I';
                }
            }
        }
        }
    }



    cout << integer << " is equal to " << roman;
}

    return 0;
}