CPP
cpp
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#include <iostream>
#include <vector>
#include <cctype>
using std::string;
using std::vector;
using std::cout;
using std::cin;
string toLower(string &str) {
string str2 = str.substr();
for(int i=0; i<str2.size(); i++) {
str2[i] = tolower(str2[i]);
}
return str2;
}
int main() {
string input;
getline(cin, input);
string current;
int num;
vector<string> vect;
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