import std.stdio, std.string, std.conv;

void main() {
	string a = readln().chomp();
	string res;
	foreach(int i; 0..(1<<3)) {
		int t = a[0]-'0';
		res = to!(string)(a[0]);
		foreach(int j; 0..3) {
			if(i&(1<<j)) {
				t += a[j+1]-'0';
				res ~= "+";
			}
			else {
				t -= a[j+1]-'0';
				res ~= "-";
			}
			res ~= a[j+1];
		}
		if(t == 7) {
			res ~= "=7";
			break;
		}
	}
	writeln(res);
}
