添加 'B.cpp'

B.cpp

@@ -0,0 +1,10 @@
+#include<bits/stdc++.h>
+using namespace std;
+int main(){
+    int a,b;
+    cin>>a>>b;
+    int p=(a/10+b/10)%10;
+    int q=(a%10+b%10)%10;
+    cout<<p*10+q<<endl;
+    return 0;
+}