C1111233133313231133133313331333133313223313133313132313233231321   >>    C111123313331323113313331333133313331322331313331313231323323132   <<    C1111233133313231133133313331333133313223313133313132313233231323   >>      C1111233133313231133133313331333133313223313133313132313233231322   >>