C1111233131211111211113313331323133313231323223313223313113311331   >>    C111123313121111121111331333132313331323132322331322331311331133   <<    C1111233131211111211113313331323133313231323223313223313113311333   >>      C1111233131211111211113313331323133313231323223313223313113311332   >>