p = import("P.csv");
q = import("Q.csv");
r = import("R.csv");
s = import("S.csv");
t = import("T.csv");

for pr in p {
    for qr in q {
        for rr in r {
            for sr in s {
                for tr in t {
                    out.add(pr[0], pr[1], pr[2], qr[0], qr[1], qr[2], rr[0], sr[0], tr[0], tr[1], tr[2], tr[3]);
                }
            }
        }
    }
}