timus: 106485TP


s=toupper(c); // Convert lowercase letter to uppercase (function)
s=tolower(c); // Convert uppercase letter to lowercase (function)

str.length(); // Return length of string (public member function)
str.size();   // Return length of string (public member function)


#include <iostream>
...
// numbers
int n;
while (std::cin >> n)
{
   ...
}
// lines
std::string line;
while (std::getline(std::cin, line))
{
   ...
}
// characters
char c;
while (std::cin.get(c))
{
   ...
}


fin>>str;
                ind1 = static_cast<int>(str[0]-97);
                ind2 = static_cast<int>(str[1]-49);