from getline(): len=4 ['1.0', '0.0', '0.0', '1.0'] from getline(): len=4 ['0.0', '1.0', '0.0', '4.0'] from getline(): len=4 ['0.0', '0.0', '1.0', '1.20462167263'] from getline(): len=4 ['0.0', '0.0', '0.0', '1.0'] from getline(): len=2 ['6', 'exit01']