vector print
  trashes a, z, n

routine chrout
  inputs a
  trashes a
  @ 65490

routine printa
  trashes a, z, n
{
    ld a, 65
    call chrout
}

routine printb
  trashes a, z, n
{
    ld a, 66
    call chrout
}

routine main
  inputs printa, printb
  trashes print, a, z, n
{
    copy printa, print
    call print
    copy printb, print
    call print
}