010203040506070809101112010203040506010203040506070809101112010203040506
    080910111201020304050607080910111201080910111201020304050607080910111201
    030405060708091011120102030405060708030405060708091011120102030405060708
    101112010203040506070809101112010203101112010203040506070809101112010203
    050607080910111201020304050607080910050607080910111201020304050607080910
    120102030405060708091011120102030405120102030405060708091011120102030405
    A wall in motionRows drift on their own and lean toward the pointer.