C1111133313331323223313331333133313331321123113313231323132313233313231313221   >>    C111113331333132322331333133313331333132112311331323132313231323331323131322   <<    C1111133313331323223313331333133313331321123113313231323132313233313231313223   >>      C1111133313331323223313331333133313331321123113313231323132313233313231313222   >>