C31232233133313221211113313331333132313331322121133133313231331123232221321   >>    C3123223313331322121111331333133313231333132212113313331323133112323222132   <<    C31232233133313221211113313331333132313331322121133133313231331123232221323   >>      C31232233133313221211113313331333132313331322121133133313231331123232221322   >>