#include <iostream>
#include <deque>
#include <cstdlib>

int main() {
    int indices[256];
    int size = 255;
    
    for (int i = 0; i < 256; i++) {
        indices[i] = i;
    }
    
    while (size > 0) {
        unsigned char rnd = rand() % size;
        
        std::cout << indices[rnd];
        
        indices[rnd] = indices[size];
        indices[size--] = indices[rnd];
        
        if (size % 16 == 0) {
            std::cout << std::endl;
        } else {
            std::cout << ", ";
        }
    }
    
    return 0;
}