C312322331333132212111133133313331333133312121111331331123221321   >>    C31232233133313221211113313331333133313331212111133133112322132   <<    C312322331333132212111133133313331333133312121111331331123221323   >>      C312322331333132212111133133313331333133312121111331331123221322   >>