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

char *
get_word(void) {
    int i, c;
    static char word[64];
    
    for (i = 0; i < sizeof word - 1; i++) {
        c = getchar();
        if (c == EOF || isspace(c))
            break;
        word[i] = c;
    }
    word[i] = '\0';
    
    return word;
}

int
main(int argc, char *argv[]) {
    char *s, *t;
    printf("Enter first word: ");
    s = get_word();
    printf("Enter second word: ");
    t = get_word(); /* ERROR: array s points to is changed */ 
    printf("You entered '%s' and '%s'\n", s, t); /* prints second word twice */
    return 0;
}

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