Example: doIt (Cont.)
w  ‘b’,’B’: writeln(‘gcd, lcm =‘, gcd(A, B), ‘,’, lcm(A, B));
w
w 
w
w
wotherwise
w     writeln(‘Unknown choice’);
w  end
wend;
case ‘b’: case ‘B’:
    cout << “gcd, lcm =“
  << gcd(A,B)
  << “,  “
  << lcm(A,B)
  << endl;
     break;
default:
    cout << “Unknown choice”
            << endl;
}
}