Searching for a particular value is an example of a process filter. The program below reads a character, and then searches for that character in input. Modify the filter so that it also reports the line number in which the character appears. findS.cpp 1 finclude 2 #include 3 using namespace std; 4 5 int main() const char SENTINEL = cin.get(); cout « "Looking for " « SENTINEL « ". int position{0}; char ch; while (cin.get(ch) & ch != SENTINEL) { position++; 8 « endl; 9 10 11 12 13 14 15 if (ch = SENTINEL) { cout « ** « ch « " was found at « position « endl; 16 17 18 19 20 else 21 cout « *** < SENTINEL « *" was NOT found in input." « endl; 22 23