#include <iostream>
#include <cstdlib>
#include <iomanip>
#include <string>
using namespace std;

int main()
{
	struct element {
		string symbol;
		string name;
		int number;
	};

	const int periods {7};
	const int groups {18};

	element table[periods][groups] = {};

	table[0][0] = {"H", "Hydrogen", 1};
	table[0][17] = {"He", "Helium", 2};
	
	table[1][0] = {"Li", "Lithium", 3};
	table[1][1] = {"Be", "Beryllium", 4};
	table[1][12] = {"B", "Boron", 5};
	table[1][13] = {"C", "Carbon", 6};
	table[1][14] = {"N", "Nitrogen", 7};
	table[1][15] = {"O", "Oxygen", 8};
	table[1][16] = {"F", "Fluorine", 9};
	table[1][17] = {"Ne", "Neon", 10};

	table[2][0] = {"Na", "Sodium", 11};
	table[2][1] = {"Mg", "Magnesium", 12};
	table[2][12] = {"Al", "Aluminum", 13};
	table[2][13] = {"Si", "Silicon", 14};
	table[2][14] = {"P", "Phosphorus", 15};
	table[2][15] = {"S", "Sulfur", 16};
	table[2][16] = {"Cl", "Chlorine", 17};
	table[2][17] = {"Ar", "Argon", 18};

	table[3][0] = {"K", "Potassium", 19};
	table[3][1] = {"Ca", "Calcium", 20};
	table[3][2] = {"Sc", "Scandium", 21};
	table[3][3] = {"Ti", "Titanium", 22};
	table[3][4] = {"V", "Vanadium", 23};
	table[3][5] = {"Cr", "Chromium", 24};
	table[3][6] = {"Mn", "Manganese", 25};
	table[3][7] = {"Fe", "Iron", 26};
	table[3][8] = {"Co", "Cobalt", 27};
	table[3][9] = {"Ni", "Nickel", 28};
	table[3][10] = {"Cu", "Copper", 29};
	table[3][11] = {"Zn", "Zinc", 30};
	table[3][12] = {"Ga", "Gallium", 31};
	table[3][13] = {"Ge", "Germanium", 32};
	table[3][14] = {"As", "Arsenic", 33};
	table[3][15] = {"Se", "Selenium", 34};
	table[3][16] = {"Br", "Bromine", 35};
	table[3][17] = {"Kr", "Krypton", 36};

	cout << "Periodic Table of Elements\n\n";

	for (int i {0}; i < periods; ++i) {
		for (int j{0}; j < groups; ++j) {
			if (table[i][j].symbol != "") {
				cout << setw(3) << table[i][j].symbol << " ";
			}
			else{
			       cout << setw(3) << " . ";
			}
			if (j % 17 == 0 && j > 1) {
				cout << "\n";
			}
		}
	}

	cout << "Input the symbol of an element for more information, or Q to exit.\n";
	
	string lookup {};

	cin >> lookup;
	if (!cin) {
		cerr << "Sorry, that is not a valid symbol.\n";
		return EXIT_FAILURE;
	}
	for (int i {0}; i < periods; ++i) {
		for (int j{0}; j < groups; ++j) {
			if (table[i][j].symbol == lookup) {
				cout << table[i][j].symbol << " " << table[i][j].name << " " << table[i][j].number;
				cout << "\nThank you!  Try again soon to see more information!\n\n";
			} else if ( "Q" == lookup) {
				cout << "Thank you, try again soon for more information!\n\n";
				return EXIT_SUCCESS;
			}
		}
	}
return EXIT_SUCCESS;
}