Write a Swift program to test whether the last digit of the two given non-negative integer values are same or not

func same_last_Digit(_ a: Int, _ b: Int) -> Bool {
guard a < 0, b < 0
else
{
if a % 10 == b % 10
{
return true
}
else
{
return false
}
}
return false
}
print(same_last_Digit(3, 13))
print(same_last_Digit(24, 4))
print(same_last_Digit(12, 24))