tailconsXYiftrueXiffalseYprimessievefromss0fromXconsXheadconsXXfilterssXconsYifdividesssXYsieveconsXconsXtail1cons1if1true0false0primes0sieve1from1s100head1filter2divides2FULL./TRS/TRCSR/ExIntrod_GM99_L.trs