first commit

from old repository to a new repository

swea/1986.py

@@ -0,0 +1,12 @@
+n=int(input())
+
+for i in range(1,n+1):
+    k=int(input())
+
+    result=0
+    for j in range(1,k+1):
+        if j%2==0:
+            result-=j
+        else:
+            result+=j
+    print("#"+str(i),result)