diff --git a/HDOJ/5878_chouti.cpp b/HDOJ/5878_chouti.cpp
new file mode 100644
index 0000000..a50bd98
--- /dev/null
+++ b/HDOJ/5878_chouti.cpp
@@ -0,0 +1,48 @@
+#include<map>
+#include<stack>
+#include<queue>
+#include<cstdio>
+#include<string>
+#include<vector>
+#include<cstring>
+#include<complex>
+#include<iostream>
+#include<assert.h>
+#include<algorithm>
+using namespace std;
+#define inf 1001001001
+#define infll 1001001001001001001LL
+#define ll long long
+#define dbg(vari) cerr<<#vari<<" = "<<(vari)<<endl
+#define gmax(a,b) (a)=max((a),(b))
+#define gmin(a,b) (a)=min((a),(b))
+#define Ri register int
+#define gc getchar()
+#define il inline
+#include<set>
+il int read(){
+    bool f=true;Ri x=0;char ch;while(!isdigit(ch=gc))if(ch=='-')f=false;while(isdigit(ch)){x=(x<<1)+(x<<3)+ch-'0';ch=gc;}return f?x:-x;
+}
+#define gi read()
+ll p[10000],_p;
+set<ll>q;
+int main(){
+    q.insert(1);
+    int cnt=0;
+    while(!q.empty()){
+        p[++_p]=*q.begin();
+        q.erase(p[_p]); 
+        ll t=p[_p];
+        if(t>1000000000){break;}
+        if(2*t<=1000000000)q.insert(2*t);
+        if(3*t<=1000000000)q.insert(5*t);
+        if(5*t<=1000000000)q.insert(3*t);
+        if(7*t<=1000000000)q.insert(7*t);
+    }
+    int T=gi;
+    while(T--){
+        int n=gi;
+        int pos = lower_bound(p+1, p+_p+1, n) - p;
+        printf("%I64d\n", p[pos]);
+    }
+}