StringLearning.h

'a' stands for 97;
'b' stands for 98;
'c' stands for 99;
and so on.........


'A' stands for 65;
'B' stands for 66;
'C' stands for 67;
and so on.........

'0' stands for 48;
'1' stands for 49;
'9' stands for 57;

and so on.........

stoi() changes string to Int

string s = "anagh";
loop(s.length())
cout << s[i] - 'a'; // 0 13 0 6 7

to_string() changes Int to String