int f1(int x) {
    switch(x) {
    case 10: return 3;
    case 37: return 1;
    case 96: return 0;
    case 104: return 1;
    }
    assert(...);
}

int f2(int x) {
    // P(x) = (x - 70)^2 / 1000
    int q = x - 70;
    return (q * q) >> 10;
}