### PascalABC.NET
begin
var age := ReadInteger();
if age >= 18 then Print('You are allowed to drive') else Print('You are be allowed to drive after ', 18-age, ' years');
end.
### Python 3.7.2
age = int(input())
print('you are allowed to drive' if (age >= 18) else f'you are allowed to drive car after {18-age} years')
Объяснение: