C111123313331323113313331333133313231323133313133313231311332211   >>    C11112331333132311331333133313331323132313331313331323131133221   <<    C111123313331323113313331333133313231323133313133313231311332213   >>      C111123313331323113313331333133313231323133313133313231311332212   >>