diff --git a/hello world.cpp b/hello world.cpp
index fa54591..2c7929b 100644
--- a/hello world.cpp	
+++ b/hello world.cpp	
@@ -1,6 +1,10 @@
 #include<iostream>
 using namespace std;
 int main() {
-	cout<<"My name is yizhiyinbao";
+	int a,b,c;
+	cin>>a;
+	cin>>b;
+	cout<<(a+b)*2<<endl;
+	cout<<a*b;
 	return 0;
 }
diff --git a/hello world.exe b/hello world.exe
index 85621c4..0c12328 100644
Binary files a/hello world.exe and b/hello world.exe differ
diff --git a/两个数的计算.cpp b/两个数的计算.cpp
new file mode 100644
index 0000000..9f3dffd
--- /dev/null
+++ b/两个数的计算.cpp
@@ -0,0 +1,12 @@
+#include<iostream>
+using namespace std;
+int main() {
+	int x,y;
+	cin>>x;
+	cin>>y;
+	cout<<"x+y="<<x+y<<endl;
+	cout<<"x-y="<<x-y<<endl;
+	cout<<"x*y="<<x*y<<endl;
+	cout<<"x/y="<<x/y;
+	return 0;
+}
diff --git a/两个数的计算.exe b/两个数的计算.exe
new file mode 100644
index 0000000..0dd7c01
Binary files /dev/null and b/两个数的计算.exe differ
diff --git a/景区门票计算.cpp b/景区门票计算.cpp
new file mode 100644
index 0000000..3ba2483
--- /dev/null
+++ b/景区门票计算.cpp
@@ -0,0 +1,8 @@
+#include<iostream>
+using namespace std;
+int main() {
+	int x,y,z;
+	cin>>x>>y>>z;
+	cout<<x*120+y*60+z*72;
+	return 0;
+}
diff --git a/景区门票计算.exe b/景区门票计算.exe
new file mode 100644
index 0000000..d84bdd4
Binary files /dev/null and b/景区门票计算.exe differ
diff --git a/跑步时间.cpp b/跑步时间.cpp
new file mode 100644
index 0000000..6cd11c0
--- /dev/null
+++ b/跑步时间.cpp
@@ -0,0 +1,11 @@
+#include<iostream>
+using namespace std;
+int main() {
+	int n;
+	cin>>n;
+	int s=n%60;
+	int m=n/60%60;
+	int h=n/60/60; 
+	cout<<h<<" "<<m<<" "<<s;
+	return 0;
+}
diff --git a/跑步时间.exe b/跑步时间.exe
new file mode 100644
index 0000000..afbf838
Binary files /dev/null and b/跑步时间.exe differ