Pop elements divisible by 3 and 7 from the list in python

Question

I want to pop elements divisible by 3 and 7 from the list. This is the code I wrote, but it's not working properly.

tab = []

for i in range(20):
    tab.append(int(input("Input number: ")))

for i in tab: 
    if (i % 3 != 0) and (i % 7 != 0):
        continue
    else: 
        tab.pop(i)

print(tab)