diff --git a/POJ/2406.cpp b/POJ/2406.cpp
new file mode 100644
index 0000000..c36624f
--- /dev/null
+++ b/POJ/2406.cpp
@@ -0,0 +1,39 @@
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
+using namespace std;
+
+void getfill(char* s,int L,int* f)
+{
+    //memset(f,0,sizeof(f));  //根据其前一个字母得到
+    for(int i=1;i<L;i++)
+    {
+        int j=f[i];
+        while(j && s[i]!=s[j])
+            j=f[j];
+        f[i+1]=(s[i]==s[j])?j+1:0;
+    }
+}
+
+#define MAXLEN 1000100
+int next[MAXLEN];
+char buffer[MAXLEN];
+int main()
+{
+    while(scanf("%s",buffer)==1)
+    {
+        if(buffer[0]=='.') break;
+        memset(next,0,sizeof(next));
+        int len=strlen(buffer);
+        getfill(buffer,len,next);
+        if(len%(len-next[len])==0)
+        {
+            printf("%d\n",len/(len-next[len]));
+        }
+        else
+        {
+            printf("1\n");
+        }
+    }
+    return 0;
+}