a fractional number n is entered from the keyboard. Output ten numbers. The sum of all ten numbers displayed is n.

def func(n):
    a = 0
    str_a = ''
    i = 1
    while a < n:
        i += 1
        if n - a - i > 1:
            a += i
            str_a += str(i) + ' + '
        else:
            str_a += str(n - a)
            break
    return str_a
print(func(18))