After executing the following instructions, what are the value of the variables str1 and str2 ?

char str1[100] = "Howdy, ";
char str2[100] = "partner!";
char * p1 = str1;
char * p2 = str2;
while (*p1 != '\0') p1++;
while (*p2 != '\0') *(p1++) = *(p2++);
*p1 = '\0';