Match it with switch case
switch ( r ) { case 1 : cout << " one ▁ " ; break ; case 2 : cout << " two ▁ " ; break ; case 3 : cout << " three ▁ " ; break ; case 4 : cout << " four ▁ " ; break ; case 5 : cout << " five ▁ " ; break ; case 6 : cout << " six ▁ " ; break ; case 7 : cout << " seven ▁ " ; break ; case 8 : cout << " eight ▁ " ; break ; case 9 : cout << " nine ▁ " ; break ; case 0 : cout << " zero ▁ " ; break ; default : cout << " UnValid ▁ " ; break ; }