proc start
push 0
push '!'
push 'd'
push 'l'
push 'r'
push 'o'
push 'w'
push ' '
push 'o'
push 'l'
push 'l'
push 'e'
push 'H'
call print
call nl
endproc
proc nl
push '\n' outc
endproc
proc print
dup
loop
outc
dup
endloop
pop
endproc