00{0}0}1}2}3}4}4}4}6}6}5}7}7}15}8}7}9}10}11}12}13}15}14}16}16}3}6}7}3}5}4}11}10}14}12}13}17}18}18}18}18}19}19}18}18}19}19}20}21}20}21}21}21}22}22}23}23}23}24}24}25}26}26}27}26}25}25}22}19}19}19}20}21}20}20}21}20}23}23}22}22}24}25}26}26}27}27}28}28}29}30}3