Please help me on my program as this is not working altjough getting correct output:

include

#include <cstdio>

include

include

include

using namespace std;

int main() {

string s;

while (getline(cin, s)) {

int n=s.size();
if(s[0] == 'S' && s[2]=='M' && s[n-1]== ')'){

  for(int i=4 ; i<n-2 ; i++){
    if (isupper(s[i])) {
      cout << " " << (char)tolower(s[i]);
    } else {
      cout << s[i];
    }
  }
  cout<<endl;
}
if(s[0]=='C' && s[2]=='V'){

  for(int i=4 ; i<n ; i++){
    if ((s[i]) == ' ') {
      cout << (char)toupper(s[i+1]);
      i++;
    } else {
      cout << s[i];
    }
  }
  cout<<endl;

}

if(s[0] == 'C' && s[2]=='C' ){

  cout<< (char)toupper(s[4]);
  for(int i=5 ; i<n ; i++){
    if ((s[i]) == ' ') {
      cout << (char)toupper(s[i+1]);
      i++;
    } else {
      cout << s[i];
    }

  }
  cout<<endl;
}

if(s[0] == 'S' && s[2]=='C' ){
      cout<< (char)tolower(s[4]);

  for(int i=5 ; i<n ; i++){
    if (isupper(s[i])) {
      cout << ' ' << (char)tolower(s[i]);

    } else {
      cout << s[i];
    }
  }
  cout<<endl;
}

if(s[0] == 'C' && s[2]=='M' ){

  string r;
  for(int i=4 ; i<n ; i++){

    if ((s[i]) == ' ') {
      r=r+(char)toupper(s[i+1]);
      i++;


    } else {
      r=r+s[i];
    }
  }
  r=r+"()";
  cout << r <<endl;

}

if(s[0] == 'S' && s[2]=='V' ){
      cout<< (char)tolower(s[4]);

  for(int i=5 ; i<n ; i++){
    if (isupper(s[i])) {
      cout << ' ' << (char)tolower(s[i]);

    } else {
      cout << s[i];
    }
  }
  cout<<endl;
}

} /* Enter your code here. Read input from STDIN. Print output to STDOUT */
return 0; }