D1313331322132333132333132312312323331323223313113313233313233313232313211   >>    D131333132213233313233313231231232333132322331311331323331323331323231321   <<    D1313331322132333132333132312312323331323223313113313233313233313232313213   >>      D1313331322132333132333132312312323331323223313113313233313233313232313212   >>