#include <iostream>
#include <vector>
#include <string>

int main() {
    std::string s = "ADARSH";  // Example string
    std::vector<int> charIndex(128, -1); // 128 for ASCII characters, initialized to -1

    // Iterate over the string and store the first occurrence of each character
    for (int i = 0; i < s.length(); i++) {
        char currentChar = s[i];
        int asciiValue = (int)currentChar; // Get ASCII value

        // Store the first occurrence only if it's not already stored
        if (charIndex[asciiValue] == -1) {
            charIndex[asciiValue] = i;
        }
    }

    // Print the characters in the order they appear in the string, but only the first occurrence
    std::cout << "Character\tASCII Value\tFirst Occurrence Index" << std::endl;
    for (int i = 0; i < s.length(); i++) {
        char currentChar = s[i];
        int asciiValue = (int)currentChar;

        // If it's the first occurrence, print it
        if (charIndex[asciiValue] == i) {
            std::cout << currentChar << "\t\t" << asciiValue << "\t\t" << i << std::endl;
        }
    }

    return 0;
}