diff --git a/labtest.cpp b/labtest.cpp
index 93bf6ae..0f07cba 100644
--- a/labtest.cpp
+++ b/labtest.cpp
@@ -1,20 +1,37 @@
-#include<bits/stdc++.h>
+#include <bits/stdc++.h>
 using namespace std;
-//write a user defined function to find first N prime numbers;
-//the function should be named like : youname_yourid;
 
-/*
-example:
+// user-defined function to find first N prime numbers
+void morshedulislam_221400036(int n) {
+    int count = 0;
 
-void nishat_90(int n){
-//your code here;
-}
-*/
+    for (int num = 2; count < n; num++) {
+        bool isPrime = true;
 
-int main(){
+        for (int i = 2; i * i <= num; i++) {
+            if (num % i == 0) {
+                isPrime = false;
+                break;
+            }
+        }
 
+        if (isPrime) {
+            cout << num << " ";
+            count++;
+        }
+    }
+}
 
+int main() {
     int n;
-    cout<<"Enter the number n"<<endl;
-    cin>>n;
+    cout << "Enter the number n" << endl;
+    cin >> n;
+
+    if (n <= 0) {
+        cout << "Please enter a positive number.";
+        return 0;
+    }
+
+    morshedulislam_221400036(n);
+    return 0;
 }