 0 and a 0, there can't be two 0s. So there's a single 0.  Since there's a single 0 and a 0, there can't be two 0s. So there's a single 0.  Since there's a 0, a 0, and a 0, there can't be two 0s. So there's a single 0.  Since there's a single 0 and a single 0 and a 0, there can't be two 0s. So there's a single 0.  Since there's a 0, a 0, a