print("Mary had a litter lamb.") #mary 有一只小羊羔

color = "snow"
print("Its fleece(羊毛) was white as %s."%color)
print("And everywhere that Mary went.")
print("." * 20)

end1 = "q"
end2 = "w"
end3 = "e"
end4 = "r"

#watch that comma at the end.try removing it to see what happens
print(end1 + end2 + end3)
print(end1 + end2 + end3,end=' ')
print(end2 + end3)
