diff --git a/laboratorna1/Program.cs b/laboratorna1/Program.cs
index f422643..7da1fe8 100644
--- a/laboratorna1/Program.cs
+++ b/laboratorna1/Program.cs
@@ -9,6 +9,44 @@ public class Lab1
          o2 = *
          c7 = short */
 
+         var A = 4;
+         short B = 3;
+         var N = 10;
+         var M = 10;
+
+         var C = 1;
+         var s = 0;
+
+         bool divisionByZero=false;
+
+
+        if ((A <= -C && -C <= N) || (B <= 0 && 0 <= M))
+        {
+            Console.WriteLine("Division by zero!");
+            return;
+        }
+      
+        for (int i = A; i <= N; i++)
+        {
+            if (i + C == 0) { 
+                Console.WriteLine("Division by zero!");
+                divisionByZero = true;
+                break; 
+            }
+            for (short j = B; j <= M; j++)
+            {
+                if (j == 0) {
+                    Console.WriteLine("Оскільки j = 0, то сума просто буде 0");
+                    break;
+                }
+                s += (i * j) / (i + C);
+            }
+        }
+
+        if (!divisionByZero)
+        {
+            Console.WriteLine($"s = {s};" );
+        }
 
     }
 }