Main.py

def toBase(base, num):
    newNum = ''

    while num > 0:
        newNum = str(num % base) + newNum
        num //= base
    return newNum

def toDec(num, base):
    iu = str(num)
    s = 0
    t = 0
    yr = 0
    for i in range(len(iu) - 1, -1, -1):
        
        s += int(iu[i]) * (base ** yr)
        yr += 1        
    return s