import std;

void main () {
    int N, M, K; readln.read(N, M, K);
    if (M + K <= N) {
        writeln("Yes");
    }
    else {
        writeln("No");
    }
}

void read (T...) (string S, ref T args) {
    import std.conv : to;
    import std.array : split;
    auto buf = S.split;
    foreach (i, ref arg; args) {
        arg = buf[i].to!(typeof(arg));
    }
}