import java.util.Scanner

object Main {
  def main(args: Array[String]): Unit = {
    val sc = new Scanner(System.in)
    val S = sc.next()

    println((700 + (if (S(0) == 'o') {100} else {0}) + (if (S(1) == 'o') {100} else {0}) + (if (S(2) == 'o') {100} else {0})).toString)
  }
}