Basic Python 3-Bit Binary Calculator - Basic Scripting #43

int value1
int value2
int value3
value4 = 0
print("Enter 3 numbers that are 0 or 1")
input1 = int(input())
input2 = int(input())
input3 = int(input())
if input1 == "1":
    value4 + 2
if input1 == "0":
    value4 + 0
if else:
    print("I'm sorry, I didn't get that.")
if input2 == "1":
    value4 + 4
if input2 == "0":
    value4 + 0
if else:
    print("I'm sorry, I didn't get that.")
if input3 == "1":
    value4 + 8
if input3 == "0":
    value4 + 0
if else:
    print("I'm sorry, I didn't get that.")
print(value4)