input.txt

0.0,0.0	0.0,0.3	0.15,0.22	0.35,0.18	0.5,0.2	0.85,0.3	1.0,0.32	1.0,0.0
0.0,0.3	0.15,0.22	0.35,0.18	0.5,0.2	0.85,0.3	0.5,0.6	0.47,0.55	0.43,0.55	0.4,0.6	0.37,0.62
0.15,0.1	0.16,0.13	0.17,0.14	0.18,0.145825756949558	0.19,0.148989794855664	0.2,0.15	0.21,0.148989794855664	0.22,0.145825756949558	0.23,0.14	0.24,0.13	0.25,0.1	0.24,0.07	0.23,0.06	0.22,0.0541742430504416	0.21,0.0510102051443364	0.2,0.05	0.19,0.0510102051443364	0.18,0.0541742430504416	0.17,0.06	0.16,0.07
0.12,0.1	0.13,0.138729833462074	0.14,0.152915026221292	0.15,0.162449979983984	0.16,0.169282032302755	0.17,0.174161984870957	0.18,0.177459666924148	0.19,0.179372539331938	0.2,0.18	0.21,0.179372539331938	0.22,0.177459666924148	0.23,0.174161984870957	0.24,0.169282032302755	0.25,0.162449979983984	0.26,0.152915026221292	0.27,0.138729833462074	0.28,0.1	0.27,0.0612701665379258	0.26,0.0470849737787082	0.25,0.037550020016016	0.24,0.0307179676972449	0.23,0.0258380151290434	0.22,0.0225403330758517	0.21,0.0206274606680623	0.2,0.02	0.19,0.0206274606680623	0.18,0.0225403330758517	0.17,0.0258380151290434	0.16,0.0307179676972449	0.15,0.037550020016016	0.14,0.0470849737787082	0.13,0.0612701665379258							
0.0,0.3	0.37,0.62	0.4,0.6	0.43,0.55	0.47,0.55	0.5,0.6	0.85,0.3	1.0,0.32	1.0,0.64	0.3,0.64	0.0,0.64