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"
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