diff --git a/nayeongkim/SWEA/D2/1940.java b/nayeongkim/SWEA/D2/1940.java
new file mode 100644
index 00000000..23b44235
--- /dev/null
+++ b/nayeongkim/SWEA/D2/1940.java
@@ -0,0 +1,34 @@
+import java.util.Scanner;
+
+class Solution {
+    public static void main(String args[]) throws Exception {
+
+        Scanner sc = new Scanner(System.in);
+        int T;
+        T = sc.nextInt();
+        for (int test_case = 1; test_case <= T; test_case++) {
+            int N = sc.nextInt();
+            int a;
+            int velocity = 0;
+            int dist = 0;
+            int speed;
+            for (int i = 0; i < N; i++) {
+                a = sc.nextInt();
+                if (a == 1) {
+                    speed = sc.nextInt();
+                    velocity += speed;
+
+                } else if (a == 2) {
+                    speed = sc.nextInt();
+                    velocity -= speed;
+                }
+                if (velocity <= 0) {
+                    velocity = 0;
+                }
+                dist += velocity;
+
+            }
+            System.out.println("#" + test_case + " " + dist);
+        }
+    }
+}
\ No newline at end of file