moving all labs to old dir

old/lectures/lec5/p2/task1.js

@@ -0,0 +1,4 @@
+function sumNumbers(str){
+    str=str.split(" ");
+    return str.filter(substr => !isNaN(parseFloat(substr)) && isFinite(Number(substr))).reduce((acc,num) => acc+num,0);
+}