Graph[{
{{1,2}},
{{1,3}},
{{1,4}},
{{2,5}},
{{2,6}},
{{3,7}},
{{3,8}},
{{4,9}},
{{4,10}},
{{5,11}},
{{5,13}},
{{6,12}},
{{6,14}},
{{7,16}},
{{7,20}},
{{8,15}},
{{8,19}},
{{9,18}},
{{9,22}},
{{10,17}},
{{10,21}},
{{11,24}},
{{11,36}},
{{12,23}},
{{12,35}},
{{13,26}},
{{13,38}},
{{14,25}},
{{14,37}},
{{15,28}},
{{15,43}},
{{16,27}},
{{16,44}},
{{17,30}},
{{17,45}},
{{18,29}},
{{18,46}},
{{19,32}},
{{19,39}},
{{20,31}},
{{20,40}},
{{21,34}},
{{21,41}},
{{22,33}},
{{22,42}},
{{23,48}},
{{23,58}},
{{24,47}},
{{24,57}},
{{25,50}},
{{25,60}},
{{26,49}},
{{26,59}},
{{27,48}},
{{27,66}},
{{28,47}},
{{28,65}},
{{29,50}},
{{29,68}},
{{30,49}},
{{30,67}},
{{31,50}},
{{31,61}},
{{32,49}},
{{32,62}},
{{33,48}},
{{33,63}},
{{34,47}},
{{34,64}},
{{35,52}},
{{35,64}},
{{36,51}},
{{36,63}},
{{37,54}},
{{37,62}},
{{38,53}},
{{38,61}},
{{39,52}},
{{39,68}},
{{40,51}},
{{40,67}},
{{41,54}},
{{41,66}},
{{42,53}},
{{42,65}},
{{43,55}},
{{43,58}},
{{44,56}},
{{44,57}},
{{45,56}},
{{45,60}},
{{46,55}},
{{46,59}},
{{51,80}},
{{52,79}},
{{53,79}},
{{54,80}},
{{55,80}},
{{56,79}},
{{57,76}},
{{58,75}},
{{59,78}},
{{60,77}},
{{61,75}},
{{62,76}},
{{63,77}},
{{64,78}},
{{65,74}},
{{66,73}},
{{67,74}},
{{68,73}},
{{69,72}},
{{69,73}},
{{69,74}},
{{70,72}},
{{70,75}},
{{70,76}},
{{71,72}},
{{71,77}},
{{71,78}}}, CircularEmbedding[80]]
