package main

import "strconv"
import "bufio"
import "fmt"
import "os"

type Compressed struct {
	BSize int
	Count int
}

func ReadCompressed(line string) *Compressed {
	if (line[0] != '(' || line[len(line) -1] != ')') {
		return nil
	}
	line = line[1:len(line)-1]
	fmt.Println(">>>" +line +"<<<")
	this := new(Compressed)
	this.BSize = 0
	return this
}

func main() {
	reader := bufio.NewReader(os.Stdin)
	length := 0

	for true {
		line, err := reader.ReadString('(')
		if line[len(line) -1] == '(' {
			line = line[0: len(line) -1]
			reader.UnreadByte()
		}
		length += len(line)
		fmt.Println(line)
		if err != nil {
			break
		}

		line, err = reader.ReadString(')')
		compressed := ReadCompressed(line)
		if (compressed == nil) {
			length += len(line)
			continue
		}
		if err != nil {
			break
		}
	}
	fmt.Println("len: " +strconv.Itoa(length))
}