C3123223313331322121111331333133313231323223313331323132313331221   >>    C312322331333132212111133133313331323132322331333132313231333122   <<    C3123223313331322121111331333133313231323223313331323132313331223   >>      C3123223313331322121111331333133313231323223313331323132313331222   >>