ref: 493b483490d141459f73be3db887fc0aeb2fdf7e dir: /maps/route1.blk/
MRRO1PRRN M 1 tN MB11N nttnm nBm n tt 111m noom M tt1N M 1111ttN M//N M 111111N MooooN M tt1N M1N n 1 m nt1tm nQQcbQQm n MN m