C111221232313231313231313231323223313233313331323123231323233231   >>    C11122123231323131323131323132322331323331333132312323132323323   <<    C111221232313231313231313231323223313233313331323123231323233233   >>      C111221232313231313231313231323223313233313331323123231323233232   >>