print "breakの例:\n"
i = 0
["Perl","Python","Ruby","Scheme"].each{|lang|
  i += 1
  if i == 3
    break
  end 
  p [ i, lang ]
}

print "\nnextの例:\n"
i = 0 
["Perl","Python","Ruby","Scheme"].each{|lang|
  i += 1
  if i == 3
    next
  end 
  p [ i, lang ]
}

print "\nredoの例:\n"
i = 0 
["Perl","Python","Ruby","Scheme"].each{|lang|
  i += 1
  if i == 3
    redo
  end 
  p [ i, lang ]
}