diff --git a/app/zadanie01.js b/app/zadanie01.js
index 8c20173..3bc20c8 100644
--- a/app/zadanie01.js
+++ b/app/zadanie01.js
@@ -1 +1,47 @@
-//Twój kod
\ No newline at end of file
+function existInArray(array, elementToCheck){
+    for (let q = 0; q < array.length; q++) {
+        if (q>=1){
+            if (q<=5){
+                return q;
+            }
+        }
+    }
+}
+const JohnAge = 25;
+const AliceAge = (30);
+const BobAge = (17);
+var AgeSum = JohnAge + AliceAge;
+var ageModulo = AliceAge % JohnAge;
+var AgeDevide = AliceAge / BobAge;
+
+console.log("Age sum: " + AgeSum )
+console.log("age modulo: " + ageModulo)
+console.log("age devide: "+ AgeDevide)
+
+var n = 20;
+var temp1;
+var temp2;
+var l=0;
+for (let m = 0; m <= n;) {
+    for (l = 0; l < 2; l++){
+    if (m % 2 == 0) {
+        temp1=m;
+        m++;
+    } else {
+        temp2 = m;
+        m++;
+    }
+    console.log(temp1 +" is Even   "+temp2+" is Odd")
+}
+    l=0;
+}
+var n=20;
+var numbers=[];
+
+for (let m =0;m<n;){
+    numbers.push(m);
+    m++
+}
+console.log(numbers);
+
+