import std.stdio, std.conv, std.string, std.bigint;
import std.math, std.random, std.datetime;
import std.array, std.range, std.algorithm, std.container;
string read(){ static string[] ss; while(!ss.length) ss = readln.chomp.split; string res = ss[0]; ss.popFront; return res; }

void main(){
	int a = read.to!int;
	int b = read.to!int;
	
	string ans;
	if(a <= 8 && b <= 8) ans = "Yay!";
	else ans = ":(";
	
	ans.writeln;
	}