cpp add 1000, 1001

zeta_cpp/completed/1000.cpp

@@ -0,0 +1,6 @@
+#include<iostream>
+int main() {
+    int A, B;
+    std::cin >> A >> B;
+    std::cout << A+B;
+}

zeta_cpp/completed/1001.cpp

@@ -0,0 +1,6 @@
+#include<iostream>
+int main() {
+    int A, B;
+    std::cin >> A >> B;
+    std::cout << A-B; 
+}