C312322331333132212111133133313331323133313221211113311231333311   >>    C31232233133313221211113313331333132313331322121111331123133331   <<    C312322331333132212111133133313331323133313221211113311231333313   >>      C312322331333132212111133133313331323133313221211113311231333312   >>