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Task/Array-concatenation/Ursa/array-concatenation.ursa

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+# create two streams (the ursa equivalent of arrays)
+# a contains the numbers 1-10, b contains 11-20
+decl int<> a b
+decl int i
+for (set i 1) (< i 11) (inc i)
+        append i a
+end for
+for (set i 11) (< i 21) (inc i)
+        append i b
+end for
+
+# append the values in b to a
+append b a
+
+# output a to the console
+out a endl console