def binary2int(binary):
int_val, i, n = 0, 0, 0
while(binary != 0):
a = binary % 10
int_val = int_val + a * pow(2, i)
binary = binary//10
i += 1
print(int_val)
binary2int(101)
def binary2int(binary):
int_val, i, n = 0, 0, 0
while(binary != 0):
a = binary % 10
int_val = int_val + a * pow(2, i)
binary = binary//10
i += 1
print(int_val)
binary2int(101)