for i = 1:((11^2)-1)
    fprintf("%d", i);
    if i == 1
        fprintf("->Δ\n", i);
    elseif i != 2 && mod(i,2) == 0
        fprintf("->x\n", i);
    elseif i != 3 && mod(i,3) == 0
        fprintf("->x\n", i);
    elseif i != 5 && mod(i,5) == 0
        fprintf("->x\n", i);
    elseif i != 7 && mod(i,7) == 0
        fprintf("->x\n", i);
    else
        fprintf("->o\n", i);
    end
end