def main():

    y = 0
    
    for i in range(2):
        x = 300 + 500 / 200 * 10 \
            + (4 * 5)
        y += x
        print y

    print "xxxxxxxxxxxxxxxxxxxxx" \
          "yyyyyyyyyyyyyyyyyyyyy"

    print "The dog is trying to dig " \
          "under the fence..."

main()