Example. (Cont.)
wbegin
w  write(‘How many pairs?’);
w  readln(noPairs);
wfor i := 1 to noPairs do
w  begin
w    write(‘Enter first letter of’,
w      ‘choice (Gcd, Lcm, Both) ‘,
w      ‘then two numbers: ‘);
w    readln(choice, oneA, oneB);
w   doIt(choice, oneA, oneB)
w  end
wend.       
main()  {
}
cout << “How many pairs?”
cin >> noPairs;
while (cin.get() != ‘\n’);
for (i=1; i<=noPairs; i++)  {
}
cout<<“Enter first letter of”
   <<“choice (Gcd,Lcm,Both”
  <<“then two numbers: “;
cin>>choice>>oneA>>oneB;
while (cin.get() != ‘\n’);
doIt(choice, oneA, oneB);