Python Binary operations program

def takeinput(ct):
    numtype = input(ct+": int or bin?")
    num = input(ct+": please enter your number, must be a positive integer")
    if numtype == "int":
        num = int(num)
    return num
def bintoint(s):
    ct = 0
    ans = 0
    for i in s[::-1]:
        if i == "1":
            ans += 2**ct
        ct += 1
    return ans
def inttobin(num):
    if num == 0:
        return 0
    ct = 0
    ans = ""
    while(2**ct <= num):
        ct += 1
    ct -= 1
    while(ct >= 0):
        if num >= 2**ct:
            num -= 2**ct
            ans += "1"
        else:
            ans += "0"
        ct -= 1
    return ans
num1 = takeinput("1")
num2 = takeinput("2")
if type(num1) == type("a"):
    num1 = bintoint(num1)
if type(num2) == type("a"):
    num2 = bintoint(num2)
print("decimal sum: "+str(num1+num2))
print("binary sum: "+str(inttobin(num1+num2)))
print("decimal difference: "+str(num1-num2))
if num1 >= num2:
    print("binary difference: "+str(inttobin(num1-num2)))
else:
    print("binary difference: -"+str(inttobin(num2-num1)))
print("decimal product: "+str(num1*num2))
print("binary product: "+str(inttobin(num1*num2)))
print("decimal quotient: "+str(num1//num2))
print("binary quotient: "+str(inttobin(num1//num2)))
print("decimal remainder: "+str(num1%num2))
print("binary remainder: "+str(inttobin(num1%num2)))

decimal sum: 25
binary sum: 11001
decimal difference: -1
binary difference: -1
decimal product: 156
binary product: 10011100
decimal quotient: 0
binary quotient: 0
decimal remainder: 12
binary remainder: 1100