C3123223313331322121111331333133313231323223313331333231323131232211   >>    C312322331333132212111133133313331323132322331333133323132313123221   <<    C3123223313331322121111331333133313231323223313331333231323131232213   >>      C3123223313331322121111331333133313231323223313331333231323131232212   >>