# https://yukicoder.me/problems/no/3585


def main():
    N, M, K = map(int, input().split())

    lower = K
    upper = ((N - K) * (N - K - 1)) // 2
    upper += (N - K)
    upper += K - 1

    x = ((N * (N - 1)) // 2) - M
    if not (lower <= x <= upper):
        print("No")
        return

    ok_pair = set()
    base = 0
    for i in range(K - 1):
        ok_pair.add((i, i + 1))
        base += 1
    ok_pair.add((base, N - 1))

    for i in range(base, N):
        for j in range(i + 1, N):
            if (i, j) == (base, N - 1):
                continue

            ok_pair.add((i, j))
            if len(ok_pair) == x:
                break
        if len(ok_pair) == x:
            break
    
    answer = set()
    for i in range(N):
        for j in range(i + 1, N):
            if (i, j) not in ok_pair:
                answer.add((i + 1, j + 1))
    print("Yes")
    for u, v in answer:
        print(u, v)

    





if __name__ == "__main__":
    main()