zero = ["A", "E"]
one = ["B"]
two = ["C"]
three = ["D"]

inputK = gets
K = inputK.to_i

ii = 0
iii = 0
memory = ""

for i in 0..(K-1) do
        ii = i%4
        case ii
        when 0 then
                memory = zero[0]
                zero.delete_at(0)
        when 1 then
                memory = one[0]
                one.delete_at(0)
        when 2 then
                memory = two[0]
                two.delete_at(0)
        when 3 then
                memory = three[0]
                three.delete_at(0)
        end

        iii = (i+1)%4
        case iii
        when 0 then
                zero.push(memory)
        when 1 then
                one.push(memory)
        when 2 then
                two.push(memory)
        when 3 then
                three.push(memory)
        end

end

zero = zero.join('')
one = one.join('')
two = two.join('')
three = three.join('')


puts zero
puts one
puts two
puts three