package main
import "fmt"
func main() {
var number int
fmt.Print("number input >>> ")
fmt.Scanf("%d", &number)
if(number/10 == 0) {
fmt.Println("0")
} else if (number/10 == 1) {
fmt.Println("1")
} else if (number/10 == 2) {
fmt.Println("2")
} else if (number/10 == 3) {
fmt.Println("3")
} else if (number/10 == 4) {
fmt.Println("4")
} else if (number/10 == 5) {
fmt.Println("5")
} else if (number/10 == 6) {
fmt.Println("6")
} else if (number/10 == 7) {
fmt.Println("7")
} else if (number/10 == 8) {
fmt.Println("8")
} else {
fmt.Println("9")
}
}