10 19 graph
"a" 100 50
"b" 200 50
"c" 50 150
"d" 150 150
"e" 250 150
"f" 50 250
"g" 150 250
"h" 250 250
"i" 50 350
"j" 150 350
"" a b 33
"" a c 10
"" a d 56
"" b d 13
"" b e 21
"" c d 23
"" c f 24
"" c g 65
"" d e 51
"" d g 20
"" e g 17
"" e h 35
"" f g 40
"" f i 72
"" g h 99
"" g i 45
"" g j 42
"" h j 38
"" i j 83