C11111333133313232233133313331333133313223313331323132233133313231333221   >>    C1111133313331323223313331333133313331322331333132313223313331323133322   <<    C11111333133313232233133313331333133313223313331323132233133313231333223   >>      C11111333133313232233133313331333133313223313331323132233133313231333222   >>