C11111333133313232233133313331333133313331333333132233131121121121   >>    C1111133313331323223313331333133313331333133333313223313112112112   <<    C11111333133313232233133313331333133313331333333132233131121121123   >>      C11111333133313232233133313331333133313331333333132233131121121122   >>