Eraser, rubber, rubbing our pencil

[[0,0,0,0,0,0,-0.002,0.002,0.004,0.006,0.006,0.014,0.014,-0.014,0.014,0.018,0.02,0.016,-0.024,0.014,-0.012,0.01,-0.012,-0.01,0.01,-0.02,0.012,-0.014,-0.012,0.012,0.01,0.012,-0.008,-0.006,0.01,0.008,-0.004,0.006,0.006,-0.004,0.004,0.004,-0.002,0.002,-0.002,0.002,0.002,-0.002,0,0.002,0.002,-0.006,-0.01,-0.02,-0.02,-0.018,0.012,0.014,-0.012,0.012,0.01,0.008,-0.012,-0.01,0.018,-0.026,-0.016,0.016,-0.016,0.02,0.02,0.008,0.008,-0.012,0.01,0.01,-0.008,-0.008,0.01,-0.012,0.01,-0.01,0.012,-0.012,0.01,-0.008,-0.004,0.004,-0.002,0.002,-0.002,0.002,0.002,-0.002,0.002,-0.002,0,0,0.004,-0.006,0.01,-0.012,0.016,-0.02,0.018,-0.016,0.02,0.016,0.012,-0.014,0.018,0.022,0.016,-0.024,0.01,-0.014,-0.018,-0.018,0.016,-0.022,0.01,-0.012,0.016,-0.01,0.008,0.01,-0.012,0.01,-0.01,0.012,-0.008,-0.006,0.004,0.004,-0.002,0.002,-0.002,0.002,-0.002,0.002,-0.002,0.002,-0.002,0.008,-0.016,0.018,-0.024,0.022,0.022,0.016,-0.024,0.02,-0.014,0.014,-0.01,0.016,-0.016,-0.02,0.02,-0.012,0.014,-0.018,0.016,-0.028,0.012,0.01,-0.012,0.016,0.016,0.016,-0.018,0.012,-0.01,0.008,0.01,-0.008,0.01,-0.008,0.004,-0.002,0.002,-0.002,-0.002,0.002,0,0,-0.002,-0.002,-0.002,-0.006,-0.01,-0.01,-0.01,0.01,-0.014,-0.018,0.018,0.02,0.016,0.018,-0.02,0.014,0.022,-0.01,0.014,0.014,0.016,0.014,-0.012,0.018,0.014,0.016,-0.014,-0.016,-0.012,0.014,-0.016,0.014,0.012,-0.01,-0.008,-0.008,0.008,-0.008,0.004,-0.004,0.002,0.002,-0.002,-0.002,-0.002,0.002,0,0,0.002,-0.002,0.008,-0.018,0.022,-0.012,-0.016,0.028,-0.02,0.018,-0.014,-0.01,0.01,-0.018,-0.016,-0.016,-0.016,-0.016,0.008,-0.014,0.014,-0.008,-0.008,-0.014,0.012,-0.014,-0.01,-0.012,-0.022,0.018,-0.012,-0.012,0.016,-0.016,0.008,-0.008,0.006,0.006,0.004,-0.004,0.002,-0.002,0,0,0,0,0.002,-0.002,0.006,-0.008,-0.008,0.012,0.016,-0.018,0.016,0.022,-0.026,0.014,0.016,0.022,0.016,-0.028,0.018,0.012,0.014,0.012,-0.016,0.018,0.012,-0.014,-0.016,-0.016,0.012,0.012,0.014,0.014,-0.014,-0.01,-0.01,-0.014,0.008,0.006,0.006,-0.008,0.01,-0.004,0.004,0.002,0.002,-0.002,-0.002,0.002,-0.002,-0.002,0,0.002,0.004,0.012,-0.016,0.02,-0.018,0.02,-0.012,-0.012,0.018,-0.016,0.018,-0.016,0.01,0.012,-0.018,0.016,-0.02,0.018,-0.012,0.018,0.016,0.014,-0.012,0.012,0.012,-0.008,0.014,-0.014,0.014,-0.012,0.01,-0.01,0.01,-0.01,0.008,-0.006,0.004,-0.004,0.004,-0.002,0.002,-0.002,0.002,0.002,-0.002,0,0.002,-0.006,-0.012,-0.012,-0.012,0.018,-0.014,0.018,-0.02,0.018,-0.028,-0.026,0.022,0.028,0.028,0.012,-0.018,0.012,-0.01,-0.018,-0.018,-0.02,-0.014,-0.014,0.012,-0.01,0.014,0.012,-0.014,0.01,-0.014,-0.016,-0.01,0.01,-0.008,-0.01,-0.01,0.012,-0.006,0.006,0.006,-0.004,0.004,-0.004,0.002,-0.002,0.002,0.002,-0.002,0.002,0,0.002,0.002,-0.002,0.006,-0.014,0.022,-0.03,-0.022,0.016,-0.014,-0.016,0.018,-0.02,0.018,-0.012,-0.018,-0.02,-0.018,-0.018,0.02,-0.014,0.012,0.018,0.01,-0.01,-0.016,0.014,-0.012,0.012,0.02,-0.016,0.014,0.014,0.016,0.02,-0.012,0.008,-0.008,0.012,0.012,-0.01,0.008,0.006,-0.006,-0.004,0.006,-0.004,-0.004,0.002,-0.002,0.002,0.002,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]]