C111123313331323113313331333133313231323221212111133132311111221   >>    C11112331333132311331333133313331323132322121211113313231111122   <<    C111123313331323113313331333133313231323221212111133132311111223   >>      C111123313331323113313331333133313231323221212111133132311111222   >>