ref: 9de73d66399d563db49acbde3bd18f406a5e2208 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