+STR
+DOC
+MAP
=VAL "a0
=VAL "200
=VAL "a
=VAL "10
=VAL "b
=VAL "100
=VAL "bb
=VAL "101
=VAL "c
=VAL "20
-MAP
-DOC
+DOC
+MAP
=VAL "a0
=VAL "200
=VAL "a
=VAL "10
=VAL "b
=VAL "100
=VAL "bb
=VAL "101
=VAL "c
=VAL "-10
-MAP
-DOC
-STR