Write a function that converts an int num between 0-9 (inclusive) to its string equivalent (i.e., 1 -> "one").

def convert(int_num):
    num_string = ""
    if int_num == 1:
        num_string = "one"
    elif int_num == 2:
        num_string = "two"
    elif int_num == 3:
        num_string = "three"
    elif int_num == 4:
        num_string = "four"
    elif int_num == 5:
        num_string = "five"
    elif int_num == 6:
        num_string = "six"
    elif int_num == 7:
        num_string = "seven"
    elif int_num == 8:
        num_string = "eight"
    elif int_num == 9:
        num_string = "nine"
    else:
        num_string = "zero"
        
    return num_string
    
    # test
    print(convert(1))
    print(convert(3))
    print(convert(9))
    print(convert(10))
``