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#include <iostream>
#include <stack>
#include <cctype>

class Stack {
public:
    std::stack<char> loadstack(int upper);
};

std::stack<char> Stack::loadstack(int upper) {
    std::stack<char> resultStack;

    if (upper == 1) {
        for (char c = 'Z'; c >= 'A'; --c) {
            resultStack.push(c);
        }
    } else {
        for (char c = 'z'; c >= 'a'; --c) {
            resultStack.push(c);
        }
    }

    return resultStack;
}

int main() {
    Stack stack;
    std::stack<char> lowercaseStack = stack.loadstack(0);
    std::stack<char> uppercaseStack = stack.loadstack(1);

    std::cout << "Lowercase Stack: ";
    while (!lowercaseStack.empty()) {
        std::cout << lowercaseStack.top() << " ";
        lowercaseStack.pop();
    }

    std::cout << "\nUppercase Stack: ";
    while (!uppercaseStack.empty()) {
        std::cout << uppercaseStack.top() << " ";
        uppercaseStack.pop();
    }

    return 0;
}