C3132121111133313233121111331333133313331333133313331333132312313231   >>    C313212111113331323312111133133313331333133313331333133313231231323   <<    C3132121111133313233121111331333133313331333133313331333132312313233   >>      C3132121111133313233121111331333133313331333133313331333132312313232   >>