C3123223313331322121111331333133313231333132212113313331323133321123221211   >>    C312322331333132212111133133313331323133313221211331333132313332112322121   <<    C3123223313331322121111331333133313231333132212113313331323133321123221213   >>      C3123223313331322121111331333133313231333132212113313331323133321123221212   >>