C11111333133313232233133313331333133313231313231323133313233123221   >>    C1111133313331323223313331333133313331323131323132313331323312322   <<    C11111333133313232233133313331333133313231313231323133313233123223   >>      C11111333133313232233133313331333133313231313231323133313233123222   >>