rx = /\G\p{N}[[:alnum:]]*[^[:alnum:]]*/
puts "1000 22 cc33 dfdsf".gsub(rx, '')
puts "7nnn 2000 388 a 4000 bbb".gsub(rx, '')
cnggPSAvXEdccHtOfVtbOmFsbnVtOl1dKlteWzphbG51bTpdXSovCnB1dHMgIjEwMDAgIDIyICBjYzMzIGRmZHNmIi5nc3ViKHJ4LCAnJykKcHV0cyAiN25ubiAyMDAwICAgMzg4ICAgYSAgNDAwMCBiYmIiLmdzdWIocngsICcnKQ==