push a
push 5
use =(2)
push a
push 1
use >(2)
if(20)
push a
push 3
use >(2)
if(12)
push "a"
use print(1)
endif
push a
push 3
use <(2)
if(19)
push "b"
use print(1)
endif
endif
push a
push 3
use >(2)
if(32)
push a
push 5
use ==(2)
if(31)
push "c"
use print(1)
endif
endif