Multiplication program using three different numbers in swift language

Multiplication program using three different numbers in swift language. This program will perform multiplication with different numbers in the same time. 

func mul(a: Int, b: Int) -> Int 
{
return a*b
}
print(mul(a: 2, b: 10))
print(mul(a: 2, b: 12))
print(mul(a: 2, b: 14))

Output:

20                                                                                                                            

24                                                                                                                            

28