Example: doIt (Cont.)
case choice of
  ‘g’,‘G’: writeln(‘gcd=‘,
gcd(A, B));
  ‘l’, ’L’: writeln(‘lcm=
‘,lcm(A, B);
case ‘g’: case ‘G’:
    cout << “gcd=“
     << gcd(A,B)
     << endl;
     break;
case ‘l’: case ‘L’:
    cout << “lcm=“
     << lcm(A,B)
     << endl;
     break;