#!/usr/bin/m4
define(`foo', `$1     foo($1i)')
define(`rep', `$1$1$1$1$1$1')
rep(rep(oooooooooooooooooooooooo                       ))
rep(rep(ooooooooooooooo                           ))
rep(rep(oooooooo                     ))
rep(rep(abcdefghijklmnopqrstuvwxyzyxwvutsrqponmlkjihgfedcb))
rep(rep(rep(abcdefghijklmnopqrstuvwxyz)))
rep(rep(ACEGIKMOQSUWYacegikmoqsuwyywusqomkigecb))
rep(rep(ACEGIMOQSUWYacegikmoqswyywusqomigecb))
rep(rep(ACGIMOQSUWYacgikmoqswyywusomigecb))
rep(rep(ACGIMOQSUYacgikmoswyywusomiecb))
rep(rep(AGIMQUYacgikmoswyywusomiecb))
rep(rep(AIMUacgikmoswyywusomiecb))
rep(rep(acgikmoswyywusomiecb))
rep(rep(acgikoswywsomiecb))
rep(rep(acikoswywomiec))
foo