#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/wait.h>
#include <stdlib.h>
#include <stdint.h>

char st[500];

void getword() {
    int s = scanf("%s", st);
    if (s == 1) {
        pid_t pid = fork();
        if (pid == 0) {
            getword();
        }
        else {
            int status;
            waitpid(pid, &status, 0);
            int exit_code = WEXITSTATUS(status);
            exit(exit_code + 1);
        }
    }
    else {
        exit(0);
    }
}

int main(int argc, char* argv[]) {
    int result;

    pid_t pid = fork();
    if (pid == 0) {
        getword();
    }
    else {
        int status;
        waitpid(pid, &status, 0);
        result = (uint8_t) WEXITSTATUS(status);
    }

    printf("%d\n", result);
}