While loop that needs to count up

[ImLearningPython]

The code works as it should with one exception, I can't seem to figure it out.

User-inputs a number and then I need the program to print 1 : text then 2 : text until the number that was entered is reach. So input of 2 would result in 1 : text then newline 2 : text

This is the code I have now for it.

def shampoo_instructions(num_cycles):
    if num_cycles < 1:
        print('Too few')
    elif num_cycles > 4:
        print('Too many')
    else:
        i = num_cycles
        while i <+ 4:
            print(i,': Lather and rinse.')
            i += 1
        print('Done.')
shampoo_instructions(2) 

OUTPUT

2 : Lather and rinse.
3 : Lather and rinse.
Done.