C31232233133313221211113313331333133313112223313231333132313331123211311   >>    C3123223313331322121111331333133313331311222331323133313231333112321131   <<    C31232233133313221211113313331333133313112223313231333132313331123211313   >>      C31232233133313221211113313331333133313112223313231333132313331123211312   >>