local str = "123 badWord 1456"
local pos1, pos2 = string.find(str,"badWord")
local resultStr = string.sub(str,1,pos1-1) .. string.sub(str,pos2+1)
print(resultStr)
bG9jYWwgc3RyID0gIjEyMyBiYWRXb3JkIDE0NTYiCiAKbG9jYWwgcG9zMSwgcG9zMiA9IHN0cmluZy5maW5kKHN0ciwiYmFkV29yZCIpCmxvY2FsIHJlc3VsdFN0ciA9IHN0cmluZy5zdWIoc3RyLDEscG9zMS0xKSAuLiBzdHJpbmcuc3ViKHN0cixwb3MyKzEpCnByaW50KHJlc3VsdFN0cik=