RosettaCodeData/Task/Remove-duplicate-elements/Aime/remove-duplicate-elements-2.aime

index x;

for (, integer a in list(8, 2, 1, 8, 2, 1, 4, 8)) {
    if ((x[a] += 1) == 1) {
        o_(" ", a);
    }
}
o_newline();