C1231321123223331211111131211113313331333132313332323232213213231311   >>    C123132112322333121111113121111331333133313231333232323221321323131   <<    C1231321123223331211111131211113313331333132313332323232213213231313   >>      C1231321123223331211111131211113313331333132313332323232213213231312   >>