C312322331333132212111133133313331323133313221211111333132213232311   >>    C31232233133313221211113313331333132313331322121111133313221323231   <<    C312322331333132212111133133313331323133313221211111333132213232313   >>      C312322331333132212111133133313331323133313221211111333132213232312   >>