C3123223313331322121111331333133313231323223313331333131313311211   >>    C312322331333132212111133133313331323132322331333133313131331121   <<    C3123223313331322121111331333133313231323223313331333131313311213   >>      C3123223313331322121111331333133313231323223313331333131313311212   >>