C31232233133313221211113313331333132313331322121133133311213233231   >>    C3123223313331322121111331333133313231333132212113313331121323323   <<    C31232233133313221211113313331333132313331322121133133311213233233   >>      C31232233133313221211113313331333132313331322121133133311213233232   >>