C1231321123223331211111131211113313331333132313231132332213132233311   >>    C123132112322333121111113121111331333133313231323113233221313223331   <<    C1231321123223331211111131211113313331333132313231132332213132233313   >>      C1231321123223331211111131211113313331333132313231132332213132233312   >>