Ruby print function

Ruby print function

# Call the each method of each collection in turn.
# This is not a parallel iteration and does not require enumerators.
def sequence(*enumerables, &block)
enumerables.each do |enumerable|
enumerable.each(&block)
end
end
# Examples of how these iterator methods work
a,b,c = [1,2,3],4..6,'a'..'e'
print "#{sequence(a,b,c) {|x| print x}}\n"
why the results is:

123456abcde[[1, 2, 3], 4..6, "a".."e"]
anyone could tell me why [[1, 2, 3], 4..6, "a".."e"] is getting printed?
or tell me why the return value of the 'sequence' method is [[1, 2, 3],
4..6, "a".."e"]?? Many thanks