ce="%c%%c"
cc=ce==ce
x=ce==""
exec"c=%x%%x%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%x%%%%%%%%x%%%%%%%%%%%%%%%%x"%cc%cc%x%cc%x
exec"x=%x%%x%%%%%%%%%%%%%%%%%%%%x%%%%%%%%x"%c%x%cc%c
exec"c=%x%%x"%x%c
exec"e=x%cx"%c
exec"ee=e%ce%%ce%%%%ce"%c%c%c
exec"cx=ee%cee"%c
exec"xc=ee%ce%%cx"%c%c
exec"xe=cx%cxc"%c
exec"xx=xe%ccc%%ccc"%c%c
exec"ex=xx%ccc"%c
exec"xxx=xx%cx"%c
exec"x%c=ee%%ccx"%c%c
exec"cx%c=e"%c
exec"e%c=ex"%c
ec=""""%ce%%c"""%cx%xe
exec"ec%c=ce%%xe%%ex"%c
exec"ec%c=ce%%xc%%ee"%c
exec"ec%c=ce%%e%%ex"%c
exec"ec%c=ce%%xxx%%xe"%c
exec"ex%c=cc"%c
exec"cc%c=ee"%c
exec"xc%c=cx"%c
exec"cx%c=cc"%c
exec"e=ce%%ex%%xxx%cce%%cx%%xx"%c
exec"""e%c="%%%%c"%%%%xc%%cec"""%c%c
ec=""""
"""
exec"e%c=ce%%%%x%%%%cc%%cec"%c%c
exec"""exec""%ce"""%c