Initial data commit

Task/Nested-function/D/nested-function.d

@@ -0,0 +1,15 @@
+string makeList(string seperator) {
+    int counter = 1;
+
+    string makeItem(string item) {
+        import std.conv : to;
+        return to!string(counter++) ~ seperator ~ item ~ "\n";
+    }
+
+    return makeItem("first") ~ makeItem("second") ~ makeItem("third");
+}
+
+void main() {
+    import std.stdio : writeln;
+    writeln(makeList(". "));
+}