C3123223313331322121111331333133313231333132212113313331333131121133232311   >>    C312322331333132212111133133313331323133313221211331333133313112113323231   <<    C3123223313331322121111331333133313231333132212113313331333131121133232313   >>      C3123223313331322121111331333133313231333132212113313331333131121133232312   >>