C3123223313331322121111331333133313231333132212113313331322132313111   >>    C312322331333132212111133133313331323133313221211331333132213231311   <<    C3123223313331322121111331333133313231333132212113313331322132313113   >>      C3123223313331322121111331333133313231333132212113313331322132313112   >>