diff --git "a/2209040021/chapter_\346\261\202\344\270\244\346\225\260\344\271\213\345\222\214" "b/2209040021/chapter_\346\261\202\344\270\244\346\225\260\344\271\213\345\222\214"
new file mode 100644
index 0000000000000000000000000000000000000000..3a543f2233e730c566dad0a52b7c75586a1ae031
--- /dev/null
+++ "b/2209040021/chapter_\346\261\202\344\270\244\346\225\260\344\271\213\345\222\214"
@@ -0,0 +1,18 @@
+#include<stdio.h>
+int main()
+{
+  int n=0;
+    int i=1;
+    int sum=0;
+    int flag=0;
+    int  x=0,nx=0;
+    scanf("%d",&n);
+    while(i<=n)
+    {
+        sum+=i;
+        if(sum>=100 && flag==0) x=sum,nx=i,flag=1;
+        i++;
+    }
+    printf("总和：%d\n\r",sum);
+    printf("第一次和大于等于100时的和为%d，此时n为%d\n\r",x,nx);
+}
\ No newline at end of file