C11111333133313232233133313331333132313232233132311211331312321   >>    C1111133313331323223313331333133313231323223313231121133131232   <<    C11111333133313232233133313331333132313232233132311211331312323   >>      C11111333133313232233133313331333132313232233132311211331312322   >>