C1111233131211111211113313331333132313231323223313232233132333112331   >>    C111123313121111121111331333133313231323132322331323223313233311233   <<    C1111233131211111211113313331333132313231323223313232233132333112333   >>      C1111233131211111211113313331333132313231323223313232233132333112332   >>