Initial data commit

Task/Fibonacci-sequence/ALGOL-68/fibonacci-sequence-2.alg

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+PROC iterative fibonacci = (INT n)INT:
+  CASE n+1 IN
+    0, 1, 1, 2, 3, 5
+  OUT
+    INT even:=3, odd:=5;
+    FOR i FROM odd+1 TO n DO
+      (ODD i|odd|even) := odd + even
+    OD;
+    (ODD n|odd|even)
+  ESAC;
+
+FOR i FROM 0 TO 30 WHILE
+  print(whole(iterative fibonacci(i),0));
+# WHILE # i /= 30 DO
+  print(", ")
+OD;
+print(new line)