#include <ctype.h>
#include <stdio.h>

//Automaton states
enum Automata {
    Start,
    Short_com,
    Long_com,
    String
};

int main(int agrc, char *argv[]) {
    enum Automata cur_state;
    cur_state = Start;

    char symbol;
    int counter = 0;

    while (EOF != (symbol = getchar())) {
        //Check if we can go in some not Start state
        if (symbol == '/' && cur_state == Start) {
            char next_symbol = getchar();
            if (next_symbol == '/') {
                cur_state = Short_com;
            }
            else if (next_symbol == '*') {
                cur_state = Long_com;
            }
            else {  //because of EOF
                break;
            }
            continue;   //No need to count this symbols
        }
        if (symbol == '"' && cur_state == Start) {
            cur_state = String;
            ++counter;
            continue;   //Already count symbol
        }
        //Trying to go to the Starting state
        if (cur_state == Short_com &&  symbol == '\n') {
            cur_state = Start;
            continue;   //No need to count this symbol
        }
        if (cur_state == Long_com && symbol == '*') {
            char next_symbol = getchar();
            if (next_symbol == '/') {
                cur_state = Start;
            }
            continue; //No need to count this symbols
        }
        if (cur_state == String && symbol == '"') {
            cur_state = Start;
            ++counter;
            continue; //Already count symbol
        }
        //Counting if in String or Start
        if (cur_state == Start || cur_state == String) {
            if (!isspace(symbol)) {
                ++counter;
            }
        }
        //printf("%d", cur_state);
    }

    printf("%d", counter);
}