@@ -0,0 +1,20 @@
+package main
+
+import (
+ "fmt"
+)
+func main() {
+ foo1()
+}
+func foo1() {
+ var val rune
+ fmt.Scanf("%c", &val)
+ // fmt.Println(string(val))
+ if val >= '0' && val <= '9' {
+ fmt.Println("YES")
+ } else {
+ fmt.Println("NO")
+ }