C1111233133313231133133313331333131211111331121211113313113313231322131221   >>    C111123313331323113313331333133313121111133112121111331311331323132213122   <<    C1111233133313231133133313331333131211111331121211113313113313231322131223   >>      C1111233133313231133133313331333131211111331121211113313113313231322131222   >>