C31232233133313221211113313331333132313331323331333133313113311231   >>    C3123223313331322121111331333133313231333132333133313331311331123   <<    C31232233133313221211113313331333132313331323331333133313113311233   >>      C31232233133313221211113313331333132313331323331333133313113311232   >>