program brother

integer,dimension(3)::H
read(*,*)H(:)

if(H(1)>H(2) .and. H(1)>H(3)) then
 print *,"A"
 if(H(2)>H(3)) then
  print *,"B"
  print *,"C"
 else if(H(2)<=H(3)) then
  print *,"C"
  print *,"B"
 end if
else if(H(2)>=H(1) .and. H(2)>=H(3)) then
 print *,"B"
 if(H(1)>H(3)) then
  print *,"A"
  print *,"C"
 else if(H(1)<=H(3)) then
  print *,"C"
  print *,"A"
 end if
else if(H(3)>H(2) .and. H(3)>=H(1)) then
 print *,"C"
 if(H(2)>H(1)) then
  print *,"B"
  print *,"A"
 else if(H(2)<=H(1)) then
  print *,"A"
  print *,"B"
 end if
end if
end program brother