// Write a C program that reads in words from standard input until Ctrl+D, 
// and checks whether a word read in as a command line argument is a substring 
// in the word. If so, then the word that was read in should be printed again


// Assume max length of strings read is is 100 characters

// $./array_substring courage age bloom encourage 
// blooming 
// blooming
// potato
// encourage
// encourage
// rage
// rage
// egg

#include <stdio.h>
#include <string.h>

#define MAX 100

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

    char line[MAX];
    while (fgets(line, MAX, stdin) != NULL) {
        int len = strlen(line);
        if (len > 0 && line[len - 1] == '\n') {
            len--;
        }

        int found = 0;
        int i = 1;
        while (i < argc) {
            // is argv[i] a substring of line?
            int arg_len = strlen(argv[i]);
            int j = 0;
            while (j <= (len - arg_len)) {
                if (strncmp(&line[j], argv[i], arg_len) == 0) {
                    found = 1;
                }
                j++;
            }
            i++;
        }
        if (found == 1) {
            printf("%s", line);
        }
    }
    return 0;
}