Question: 
Write a python function to find the first digit of a given number.


Model's Code:
def first_Digit(num):
    while num >= 10:
        num //= 10
    return num



Sample Correct Code:
def first_Digit(n) :  
    while n >= 10:  
        n = n / 10; 
    return int(n) 


Asserts:
assert first_Digit(123) == 1
assert first_Digit(456) == 4
assert first_Digit(12) == 1


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 479 of 974: 353/479 (73.69519832985387%): success