diff --git a/lab1/FunctionCalculator/.idea/.gitignore b/lab1/FunctionCalculator/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/lab1/FunctionCalculator/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/lab1/FunctionCalculator/.idea/.name b/lab1/FunctionCalculator/.idea/.name
new file mode 100644
index 0000000..002da1d
--- /dev/null
+++ b/lab1/FunctionCalculator/.idea/.name
@@ -0,0 +1 @@
+Main.java
\ No newline at end of file
diff --git a/lab1/FunctionCalculator/.idea/misc.xml b/lab1/FunctionCalculator/.idea/misc.xml
new file mode 100644
index 0000000..7464918
--- /dev/null
+++ b/lab1/FunctionCalculator/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="openjdk-19" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/lab1/FunctionCalculator/.idea/modules.xml b/lab1/FunctionCalculator/.idea/modules.xml
new file mode 100644
index 0000000..5092df8
--- /dev/null
+++ b/lab1/FunctionCalculator/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/FunctionCalculator.iml" filepath="$PROJECT_DIR$/FunctionCalculator.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/lab1/FunctionCalculator/FunctionCalculator.iml b/lab1/FunctionCalculator/FunctionCalculator.iml
new file mode 100644
index 0000000..c90834f
--- /dev/null
+++ b/lab1/FunctionCalculator/FunctionCalculator.iml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/lab1/FunctionCalculator/out/production/FunctionCalculator/Main.class b/lab1/FunctionCalculator/out/production/FunctionCalculator/Main.class
new file mode 100644
index 0000000..920cbb0
Binary files /dev/null and b/lab1/FunctionCalculator/out/production/FunctionCalculator/Main.class differ
diff --git a/lab1/FunctionCalculator/src/Main.java b/lab1/FunctionCalculator/src/Main.java
new file mode 100644
index 0000000..bcda6ea
--- /dev/null
+++ b/lab1/FunctionCalculator/src/Main.java
@@ -0,0 +1,51 @@
+import java.util.Scanner;
+public class Main {
+    public static void main(String[] args) {
+        //C2 = 2501 % 2 = 1, і операція O1 буде відніманням (-).
+        //C3 = 2501 % 3 = 2
+        //C5 = 2501 % 5 = 1, і операція O2 буде діленням (/).
+        //C7 = 2501 % 7 = 4, тип індексів i та j буде char.
+        double result = 0;  // результат
+        char i, j;
+        char operation1 = '-';
+        double constant = 2.0;
+        Scanner scanner = new Scanner(System.in);
+        System.out.print("Введіть значення n: ");
+        int n = scanner.nextInt();
+        System.out.print("Введіть значення m: ");
+        int m = scanner.nextInt();
+
+        // Обчислення значення функції S
+        for (i = 'a'; i <= 'a' + n - 1; i++) {
+            for (j = 'b'; j <= 'b' + m - 1; j++) {
+                try {
+                    double value = (double) i / applyOperation(j, operation1, constant);
+                    result += value;
+                } catch (ArithmeticException e) {
+                    System.out.println("Ділення на нуль: " + e.getMessage());
+                } catch (Exception e) {
+                    System.out.println("Виникла помилка: " + e.getMessage());
+                }
+            }
+        }
+
+        // Виведення результату
+        System.out.println("Результат: " + result);
+    }
+
+    // Метод, який застосовує операцію О1 до двох чисел
+    public static double applyOperation(char j, char operation, double constant) throws Exception {
+        switch (operation) {
+            case '-':
+                return (double) j - constant;
+            case '/':
+                if (constant == 0.0) {
+                    throw new ArithmeticException("C не може бути рівним нулю");
+                } else {
+                    return (double) j / constant;
+                }
+            default:
+                throw new Exception("Непідтримувана операція: " + operation);
+        }
+    }
+}
\ No newline at end of file
diff --git a/lab1/lab1.pdf b/lab1/lab1.pdf
new file mode 100644
index 0000000..3c875e7
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