do? 5 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 // Ex. 8.13: ex08_13.cpp // What does this program do? #include using namespace std; void mysteryl(char*, const char); // prototype int main() { char string1[80]; char string2 [80]; What does this program cout < < "Enter two strings: "; cin >> string1 >> string2; mysteryl(string1, string2); cout < < string1 < < endl; } // what does this function do? void mystery1(char* s1, const char* s2) { while (s1 1 '\0') { ++s1; } for (; ("s1 } s2); ++s1, ++52) { // empty statement