$ sha256sum *.svg
b763ee9ff3ce139560cdf29f35774295114ccffc6c735585d1f1651f4d7c5d02 mahjong-wall-17-columns.svg
0a1cd022d59400e53636f813edd47b37fd6d14d90851771a93903edb9473519b mahjong-wall-17-columns-with-start.svg
db1053f93ed495c40a323aaa2cd010c9b18595961d5148f101f938d7ed0fd601 mahjong-wall-18-columns.svg
8c2ed177bb247e04cefcb15e7babca7fb9e57305bb38ed09476912cb8c7a14b2 mahjong-wall-18-columns-with-start.svg