C3132121111133313233121111331333133313331333133313331333133313232113313132321   >>    C313212111113331323312111133133313331333133313331333133313331323211331313232   <<    C3132121111133313233121111331333133313331333133313331333133313232113313132323   >>      C3132121111133313233121111331333133313331333133313331333133313232113313132322   >>