diff --git a/QUSTOJ/1282.cpp b/QUSTOJ/1282.cpp
new file mode 100644
index 0000000..caa403a
--- /dev/null
+++ b/QUSTOJ/1282.cpp
@@ -0,0 +1,39 @@
+#include <cstring>
+#include <cstdio>
+#include <cstdlib>
+int c[26];
+char buff[1024];
+int main()
+{
+    int n;
+    while(scanf("%d%*c",&n)==1)
+    {
+        gets(buff);
+        memset(c,0,sizeof(int)*26);
+        for(int i=0;i<n;i++)
+        {
+            if(buff[i]>='A'&&buff[i]<='Z')
+            {
+                ++c[buff[i]-'A'];
+            }
+            else
+            {
+                ++c[buff[i]-'a'];
+            }
+        }
+        bool flag=true;
+        for(int i=0;i<26;i++)
+        {
+            if(c[i]<1) flag=false;
+        }
+        if(!flag)
+        {
+            printf("NO\n");
+        }
+        else
+        {
+            printf("YES\n");
+        }
+    }
+    return 0;
+}