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

char *getWord (FILE *fp){
    char *str = NULL;
    int c;
    size_t size = 0;
    size_t pos = 0;
    while ((c = getc(fp)) != EOF && !isspace(c) && c != '\n'){
        (pos >= size) ? str = realloc(str,
                                      sizeof(str) * (size) ? size *= 2 : 1) : 0;
        str[pos++] = c;
    }
    str = realloc(str, sizeof(str) * (pos + 1));
    str[pos] = '\0';
    return str;
}

int main(int argc, char* argv[]){
    char *str = getWord(stdin);
    printf("%s\n", str);
    free(str);
}