# copy_list selected first, not last common node ------------------------------
tcc -xif:err -Xx,all -B 2>&1 >/dev/null | grep -c match
field f_1 = raw[0];
field f_2 = raw[2] if raw[1] == 0;
field f_3 = raw[3] if raw[1] == 0;

prio {
    class if f_1 == 3 || f_2 == 0 || f_1 == 4;
    drop if f_3 == 0 || f_3 == 6;
    class if f_1 == 5 || f_1 == 6;
    drop if 1;
}
EOF
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