'use strict'

const main = input => {
	let total = 700
	if (input[0] === 'o') total += 100
	if (input[1] === 'o') total += 100
	if (input[2] === 'o') total += 100
	console.log(total)
}

main(require('fs').readFileSync('/dev/stdin', 'utf8'))
