C3123223313331322121111331333133313231333132212113313331323131133233211331   >>    C312322331333132212111133133313331323133313221211331333132313113323321133   <<    C3123223313331322121111331333133313231333132212113313331323131133233211333   >>      C3123223313331322121111331333133313231333132212113313331323131133233211332   >>