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Exercise 7: Echo in SPIM

Give an implementation of the echo command in SPIM 

int main(int argc, char *argv[])
{
   for (int i = 1; i < argc; i++)
      printf("%s ", argv[i]);
   printf("\n");
}

OR 

int main(int argc, char **argv)
{
   for (int i = 1; i < argc; i++)
      printf("%s ", *(++argv));
   printf("\n");
}