diff --git a/src/Lab1.java b/src/Lab1.java
index bfe89b0..3ddd967 100644
--- a/src/Lab1.java
+++ b/src/Lab1.java
@@ -1,7 +1,7 @@
 public class Lab1 {
     public static void main(String[] args) {
-        System.out.println( (double) 0 / 0 );
-        System.out.println( Math.sqrt(-1) );
+//        System.out.println( (double) 0 / 0 );
+//        System.out.println( Math.sqrt(-1) );
         double s = 0;
         /*for (int i = 1; i <= 3; i++) { // 1) ��������� � i = 1, 2) ���� � <= 3, 3) �������� 䳿 � �� �����,
             System.out.println(i);     // 4) �������������� � �� 1, 5) ����������� �� ����� 2
@@ -12,23 +12,31 @@ public class Lab1 {
         for (int i = 0; i < array.length; i++) {
 
         }*/
-        final int A = -1;
+        final int A = -3;
         final int B = 1;
         final int N = 2;
         final int M = 2;
 
         final int C = 1;
-
-        for (int i = A; i <= N; i++) {
+        boolean wasDivisionByZero = false;
+//        todo char
+        for (int i = A; i <= N && !wasDivisionByZero; i++) {
             if (i + C == 0) { // todo optimize
                 System.out.println("Division by zero!");
+                wasDivisionByZero = true;
                 break; //todo flag vs return;
             }
             for (int j = B; j <= M; j++) {
-                s += (double) (i + j) / (i + C);
+                if (j == 0) {
+                    System.out.println("Division by zero!");
+                    wasDivisionByZero = true;
+                    break;
+                }
+                s += (double) (i / j) / (i + C);
             }
         }
-
-        System.out.println("s = " + s);
+        if (!wasDivisionByZero) {
+            System.out.println("s = " + s);
+        }
     }
 }