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h1 = { "a" => "A", "b" => "X"} h2 = { "a" => "X", "b" => "M"} h3 = { "a" => "L", "b" => "M"} puts(h1.values.all? {|s| (s =~ /^[ASX]$/) != nil }) puts(h2.values.all? {|s| (s =~ /^[ASX]$/) != nil }) puts(h3.values.all? {|s| (s =~ /^[ASX]$/) != nil })
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