C312322331333132212111133133313331323133313331333133313331333133313133313122121   >>    C31232233133313221211113313331333132313331333133313331333133313331313331312212   <<    C312322331333132212111133133313331323133313331333133313331333133313133313122123   >>      C312322331333132212111133133313331323133313331333133313331333133313133313122122   >>