diff --git a/DECSTR.c b/DECSTR.c
new file mode 100644
index 0000000..fe5b08c
--- /dev/null
+++ b/DECSTR.c
@@ -0,0 +1,30 @@
+#include<stdio.h>
+#include<string.h>
+int main()
+{
+    int t,i,m,k;
+
+char a[104]={'z','y','x','w','v','u','t','s','r','q','p','o','n','m','l','k','j','i','h','g','f','e','d','c','b','a','z','y','x','w','v','u','t','s','r','q','p','o','n','m','l','k','j','i','h','g','f','e','d','c','b','a','z','y','x','w','v','u','t','s','r','q','p','o','n','m','l','k','j','i','h','g','f','e','d','c','b','a','z','y','x','w','v','u','t','s','r','q','p','o','n','m','l','k','j','i','h','g','f','e','d','c','b','a'};
+scanf("%d",&t);
+while(t--)
+{
+    scanf("%d",&k);
+    if(k==0)
+    {
+        printf("\n");
+            continue;
+    }
+    m=1+k;
+    m=104-m;
+    if(k>=26&&k<51)
+        m--;
+    else if(k>=51&&k<76)
+    m-=2;
+    else if(k>=76)
+        m-=3;
+    for(i=m;i<104;i++)
+        printf("%c",a[i]);
+    printf("\n");
+}
+return 0;
+}