while line = gets do
    
    if line == nil
        break
    end
    
    n = line.to_i
    
    count = 0
    
    for a in 0..9 do
        for b in 0..9 do
            for c in 0..9 do
                for d in 0..9 do
                    count += 1 if a + b + c + d == n
                end
            end
        end
    end 
    puts count
end
