//:G4 receiver

[58,29] // map size                               
[32,0]
[34,0]
[32,1]
[33,1]
[33,2]
[16,7]
[17,7]
[16,8]
[17,8]
[38,8]
[27,9]
[29,9]
[36,9]
[37,9]
[38,9]
[27,10]
[28,10]
[35,10]
[28,11]
[35,11]
[36,11]
[0,15]
[1,15]
[0,16]
[1,16]
[38,17]
[39,17]
[55,17]
[11,18]
[12,18]
[38,18]
[39,18]
[55,18]
[11,19]
[12,19]
[55,19]
[56,19]
[57,19]
[23,20]
[24,20]
[57,20]
[8,21]
[19,21]
[20,21]
[23,21]
[24,21]
[6,22]
[7,22]
[8,22]
[19,22]
[20,22]
[5,23]
[5,24]
[6,24]
[31,24]
[32,24]
[17,25]
[18,25]
[31,25]
[17,26]
[18,26]
[25,26]
[32,26]
[33,26]
[34,26]
[24,27]
[26,27]
[34,27]
[25,28]
