FL= 061,081,063,083,261,281,461,481,263,283,463,483
FL= 5252,5254,5272,5292,5452,5454,5474,5494,7252,7272,7274,7292,7454,7472,7474,7494,5274,5294,5472,5492,7254,7294,7452,7492
2924 doesnt get any closer