diff --git a/HDOJ/1276_coder.cpp b/HDOJ/1276_coder.cpp
new file mode 100644
index 0000000..aa5834b
--- /dev/null
+++ b/HDOJ/1276_coder.cpp
@@ -0,0 +1,82 @@
+#include<iostream>
+using namespace std;
+int f[5009];
+int main()
+{
+	int t;
+	int n,i;
+	
+	while(cin>>t)
+	{
+		while(t--)
+		{
+			cin>>n;
+			for(i=1;i<=n;i++)
+				f[i]=i;
+			int t;
+			if(n<=3)
+			{
+				printf("1");
+				for(i=2;i<=n;i++)
+					printf(" %d",i);
+				printf("\n");
+				continue;
+			}
+			while(1)
+			{
+				int leap=0;
+				for(i=1;i<=n;i++)
+				{
+					if(f[i]!=-1)
+					{
+						leap++;
+					}
+					if(leap==2)
+					{
+						leap=0;
+						f[i]=-1;
+					}
+				}
+				t=0;
+				for(i=1;i<=n;i++)
+					if(f[i]!=-1)
+						t++;
+					
+					if(t<=3)
+						break;
+					
+					leap=0;
+					for(i=1;i<=n;i++)
+					{
+						if(f[i]!=-1)
+							leap++;
+						if(leap==3)
+						{
+							f[i]=-1;
+							leap=0;
+						}
+					}
+					t=0;
+					for(i=1;i<=n;i++)
+						if(f[i]!=-1)
+							t++;
+						if(t<=3)
+							break;
+						
+			}
+			for(i=1;i<=n;i++)
+				if(f[i]!=-1)
+				{
+					printf("%d",f[i]);
+					break;
+				}
+				i++;
+				for(;i<=n;i++)
+					if(f[i]!=-1)
+						printf(" %d",f[i]);
+					printf("\n");
+		}
+	}
+	
+	return 0;
+}