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

int main(int argc, char *argv[]) {
    if (argc != 3) {

    fprintf(stderr, "use: %s stringa1 stringa2\n", argv[0]);
    return -1;
    }

    char *save1=NULL;

    char *cpy=malloc(sizeof(char)*(strlen(argv[2])+1));
    strcpy(cpy,argv[2]);


    char* token1 = strtok_r(argv[1], " ",&save1);
    while (token1) {
    char *save2=NULL;
    printf("%s\n", token1);
strcpy(cpy,argv[2]);
    char* token2 = strtok_r(cpy, " ",&save2);

    while(token2) {


        printf("%s\n", token2);
        token2 = strtok_r(NULL, " ",&save2);
    }
    token1 = strtok_r(NULL, " ",&save1);
    }
    return 0;
}