#include <iostream>
#include <cmath>

int main() {
    int N;
    std::cout << "Ingrese el valor de N: ";
    std::cin >> N;

    if (N <= 0) {
        std::cout << "El valor de N debe ser un número entero positivo." << std::endl;
        return 1;
    }

    for (int i = 0; i < N; ++i) {
        std::cout << "2^" << i << " = " << static_cast<int>(pow(2, i)) << std::endl;
    }

    return 0;
}

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