diff --git a/running letter.cpp b/running letter.cpp
new file mode 100644
index 00000000..c73f7610
--- /dev/null
+++ b/running letter.cpp	
@@ -0,0 +1,21 @@
+#include<stdio.h>
+#include<stdlib.h>
+int main ()
+{
+	int i,j,a,b;
+	for(i=0;i<=80;i++){
+	  	for(j=0;j<i;j++){
+	  		printf(" ");
+    	}
+		printf("%c ",'R');
+    	system("cls");
+	}
+	for(a=80;a>=0;a--){
+		for(b=0;b<=a;b++){
+			printf(" ");
+		}
+		printf("%c ",'R');
+    	system("cls");
+	}
+	return 0;
+}
diff --git "a/\346\234\252\345\221\275\345\220\2151.cpp" "b/\346\234\252\345\221\275\345\220\2151.cpp"
new file mode 100644
index 00000000..b29b9092
--- /dev/null
+++ "b/\346\234\252\345\221\275\345\220\2151.cpp"
@@ -0,0 +1,21 @@
+#include<stdio.h>
+#include<stdlib.h>
+int main ()
+{
+	int i,j,a,b;
+	for(i=0;i<=80;i++){
+	  	for(j=0;j<i;j++){
+	  		printf(" ");
+    	}
+		printf("%c ",'R');
+    	system("cls");
+	}
+	for(a=80;a>=0;a--){
+		for(b=0;b<=a;b++){
+		printf(" ");
+		}
+		printf("%c ",'R');
+    	system("cls");
+	}
+	return 0;
+}