To string

def toString(i: int) -> str:
    znaki = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
    ciag = ""
    while i:
        d = i % (len(znaki) + 1)
        i = int(i / (len(znaki) + 1))

        if d - 1 >= 0:
            ciag = znaki[d - 1] + ciag
        else:
            return False

    return ciag.replace(" ", "")


for i in range(100000):
    ciagZnakow = toString(i)

    if ciagZnakow:
        print(ciagZnakow, end=" ")