#include <iostream>

int main()
{
    int a = 3, b = 4, c = 5, i;
    
    for(i=0;i<20;i++)
    {
        std::cout << "[" << a << " " << b << " " << c << "]\n";
        
        a += 3;
        b += 4;
        c += 5;
    }

    return 0;
}