import std.stdio, std.algorithm, std.array, std.conv, std.typecons;

void main() {
	int[8][] A;
	foreach (_; 0 .. 8) {
		auto row = readln[0 .. $-1];
		int[8] row8;
		foreach (i; 0 .. 8) row8[i] = row[i] - '0'; 
		A ~= row8;
	}
	
	int[8][] vecs = [A[0]];
	foreach (i; 1 .. 8) {
		int[8][] vecs_new;
		foreach (vec; vecs) {
			int[8] vec_new;
			vec_new = vec[] - A[i][]; vecs_new ~= vec_new;
			if (vecs_new[$-1] == [0, 0, 0, 0, 0, 0, 0, 0] && i == 8) { writeln("Yes"); return; }
			
			vec = cycle(vec); vec_new = vec[] - A[i][]; vecs_new ~= vec_new;
			if (vecs_new[$-1] == [0, 0, 0, 0, 0, 0, 0, 0] && i == 8) { writeln("Yes"); return; }
			
			vec = cycle(vec); vec_new = vec[] - A[i][]; vecs_new ~= vec_new;
			if (vecs_new[$-1] == [0, 0, 0, 0, 0, 0, 0, 0] && i == 8) { writeln("Yes"); return; }
			
			vec = cycle(vec); vec_new = vec[] - A[i][]; vecs_new ~= vec_new;
			if (vecs_new[$-1] == [0, 0, 0, 0, 0, 0, 0, 0] && i == 8) { writeln("Yes"); return; }
			
			vec = cycle(vec); vec_new = vec[] - A[i][]; vecs_new ~= vec_new;
			if (vecs_new[$-1] == [0, 0, 0, 0, 0, 0, 0, 0] && i == 8) { writeln("Yes"); return; }
			
			vec = cycle(vec); vec_new = vec[] - A[i][]; vecs_new ~= vec_new;
			if (vecs_new[$-1] == [0, 0, 0, 0, 0, 0, 0, 0] && i == 8) { writeln("Yes"); return; }
			
			vec = cycle(vec); vec_new = vec[] - A[i][]; vecs_new ~= vec_new;
			if (vecs_new[$-1] == [0, 0, 0, 0, 0, 0, 0, 0] && i == 8) { writeln("Yes"); return; }
			
			vec = cycle(vec); vec_new = vec[] - A[i][]; vecs_new ~= vec_new;
			if (vecs_new[$-1] == [0, 0, 0, 0, 0, 0, 0, 0] && i == 8) { writeln("Yes"); return; }
		}
		vecs = vecs_new;
	}
	
	writeln("No");
}

int[8] cycle(int[8] vec) {
	int[8] vec2;
	vec2 = [vec[1], vec[2], vec[3], vec[4], vec[5], vec[6], vec[7], vec[0]];
	return vec2;
}