1a input.lua /^function a(x)$/;" f 2b input.lua /^ function b(x)$/;" f 3c input.lua /^ function c (x)$/;" f 4d input.lua /^function d (x)$/;" f 5e input.lua /^e=function (x)$/;" f 6f input.lua /^f =function (x)$/;" f 7g input.lua /^g = function (x)$/;" f 8h input.lua /^h= function (x)$/;" f 9