C12313211232233312111111312111133133313331323133323232322112111111331   >>    C1231321123223331211111131211113313331333132313332323232211211111133   <<    C12313211232233312111111312111133133313331323133323232322112111111333   >>      C12313211232233312111111312111133133313331323133323232322112111111332   >>