# numbers = [1, 15, 7, 3, 8, 8, 19, 5, 12, 8, 2, 6, 8] numbers = [1, 15, 8, 8, 8, 8, 7, 3, 19, 5, 12, 2, 6] counter = 1 prev = numbers.pop() while len(numbers) > 0 and counter < 4: next = numbers.pop() if prev == next: counter = counter + 1 else: counter = 1 prev = next if counter == 4: print "Found repeated number" else: print "No repeated number found"