diff --git a/666/03.cpp b/666/03.cpp
new file mode 100644
index 0000000..a842a79
--- /dev/null
+++ b/666/03.cpp
@@ -0,0 +1,14 @@
+#include<iostream>
+using namespace std;
+    int jia(int i,int j){
+    int n;
+    i+j=n
+    return n;
+}
+int main(){
+    int n,a,b;
+    cin>>a>>b;
+    cout<<n<<endl;
+
+    return 0;
+}
diff --git a/666/dog.cpp b/666/dog.cpp
new file mode 100644
index 0000000..88d2aa5
--- /dev/null
+++ b/666/dog.cpp
@@ -0,0 +1,22 @@
+#include<iostream>
+using namespace std;
+ 
+void myswap(int &i,int &j){
+    int x;
+    x=i;
+    i=j;
+    j=x;
+    }
+
+int main(){
+
+    int a,b,c;
+  
+    cin>>a>>b;
+   
+    myswap(a,b);
+
+    cout<<a<<" "<<b<<endl;
+
+    return 0;
+}
diff --git a/666/pig.cpp b/666/pig.cpp
new file mode 100644
index 0000000..9a55b5a
--- /dev/null
+++ b/666/pig.cpp
@@ -0,0 +1,20 @@
+#include<iostream>
+using namespace std;
+    
+int mypai(int arr[],int b) {
+    int max=arr[0];
+     for(int j=1;j<5;j++)
+         if(max < arr[j])
+            
+            max=arr[j];
+    
+    return max;
+    }
+
+int main(){
+
+    int a[5]={110,2,13,22,4};
+    int max=mypai(a,5);    
+    cout<< max << endl;
+    return 0;
+}
diff --git a/666/zhu.cpp b/666/zhu.cpp
new file mode 100644
index 0000000..58843c8
--- /dev/null
+++ b/666/zhu.cpp
@@ -0,0 +1,18 @@
+#include<iostream>
+using namespace std;
+
+int myadd(int x,int y);
+
+
+int main(){
+
+    int a,b,c;
+    cin>>a >>b;
+    c=myadd(a,b);
+    cout << c << endl;
+
+
+
+    return 0;
+
+}