C3123223313331322121111331333133313231333132323132313231333131323221   >>    C312322331333132212111133133313331323133313232313231323133313132322   <<    C3123223313331322121111331333133313231333132323132313231333131323223   >>      C3123223313331322121111331333133313231333132323132313231333131323222   >>