diff --git a/三位数交换.cpp b/三位数交换.cpp
new file mode 100644
index 0000000..a123861
--- /dev/null
+++ b/三位数交换.cpp
@@ -0,0 +1,8 @@
+#include<iostream>
+using namespace std;
+int main(){
+	int n;
+	cin>>n;
+	cout<<(n%10)<<(n/10%10)<<(n/100);
+	return 0;
+}
diff --git a/三位数交换.exe b/三位数交换.exe
new file mode 100644
index 0000000..1d8cd01
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diff --git a/两位数交换 .cpp b/两位数交换 .cpp
new file mode 100644
index 0000000..69c75aa
--- /dev/null
+++ b/两位数交换 .cpp	
@@ -0,0 +1,8 @@
+#include<iostream>
+using namespace std;
+int main(){
+	int n;
+	cin>>n;
+	cout<<(n%10)+(n/10%10)+(n/100);
+	return 0;
+}
diff --git a/两位数交换 .exe b/两位数交换 .exe
new file mode 100644
index 0000000..85a2c90
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diff --git a/小杨买书.cpp b/小杨买书.cpp
new file mode 100644
index 0000000..22d6282
--- /dev/null
+++ b/小杨买书.cpp
@@ -0,0 +1,8 @@
+#include<iostream>
+using namespace std;
+int main(){
+	int m;
+	cin>>m;
+	cout<<m/13<<" "<<m%13;
+	return 0;
+}
diff --git a/小杨买书.exe b/小杨买书.exe
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index 0000000..1fa8d4a
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diff --git a/王只因.txt b/王只因.txt
new file mode 100644
index 0000000..e69de29