Y, D, y = 1, "math", 5;
I = u[D];
D = "random";
v = I[D];
D = 1;
I = v(D, y);
v = I;
I = 1;
D = I;
I = 0;
for I = Y, v, D do
    F, Y = I, "shouldErr";
    C = u[Y];
    if C then
        e = "valid";
        p = u[e];
        Y = p;
        if p then
            e, W = C, "arr";
            T = u[W];
            W = 1;
            O = T[W];
            T = false;
            j = O == T;
            p = j and u["arr"][2] == u["\x13"];
            Y, C = p, e;
        end;
        C = "valid";
        u[C] = Y;
    end; 
end;