C31232233133313221211113313331333132313331322121133133313233223121   >>    C3123223313331322121111331333133313231333132212113313331323322312   <<    C31232233133313221211113313331333132313331322121133133313233223123   >>      C31232233133313221211113313331333132313331322121133133313233223122   >>