diff --git a/src/main/java/ru/ulstu/is/labwork/LabworkApplication.java b/src/main/java/ru/ulstu/is/labwork/LabworkApplication.java
index 98213be..e99cf97 100644
--- a/src/main/java/ru/ulstu/is/labwork/LabworkApplication.java
+++ b/src/main/java/ru/ulstu/is/labwork/LabworkApplication.java
@@ -18,4 +18,28 @@ public class LabworkApplication {
 	public String good_morning(@RequestParam(value = "name", defaultValue = "Sir") String name) {
 		return String.format("Good morning, %s!", name);
 	}
+	@GetMapping("/sum")
+	public int sum( @RequestParam(value = "num1", defaultValue = "0") int num1,
+					@RequestParam(value = "num2", defaultValue = "0") int num2)
+	{
+		return num1 + num2;
+	}
+	@GetMapping("/sub")
+	public int sub( @RequestParam(value = "num1", defaultValue = "0") int num1,
+					@RequestParam(value = "num2", defaultValue = "0") int num2)
+	{
+		return num1 - num2;
+	}
+	@GetMapping("/mul")
+	public int mul( @RequestParam(value = "num1", defaultValue = "0") int num1,
+			 		@RequestParam(value = "num2", defaultValue = "0") int num2)
+	{
+		return num1 * num2;
+	}
+	@GetMapping("/div")
+	public int div( @RequestParam(value = "num1", defaultValue = "0") int num1,
+					@RequestParam(value = "num2", defaultValue = "0") int num2)
+	{
+		return num1 / num2;
+	}
 }
diff --git a/src/main/java/ru/ulstu/is/labwork/WebConfiguration.java b/src/main/java/ru/ulstu/is/labwork/WebConfiguration.java
new file mode 100644
index 0000000..2de704e
--- /dev/null
+++ b/src/main/java/ru/ulstu/is/labwork/WebConfiguration.java
@@ -0,0 +1,13 @@
+package ru.ulstu.is.labwork;
+
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.servlet.config.annotation.CorsRegistry;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
+
+@Configuration
+public class WebConfiguration implements WebMvcConfigurer {
+    @Override
+    public void addCorsMappings(CorsRegistry registry) {
+        registry.addMapping("/**").allowedMethods("*");
+    }
+}
\ No newline at end of file