def componentsInGraph(gb):
    clusters = []
    for a, b in gb:
        clusters_to_fuse = []
        for cluster in clusters:
            if a in cluster or b in cluster:
                clusters_to_fuse.append(cluster)
        if clusters_to_fuse:
            fused_cluster = {a, b}
            for cluster in clusters_to_fuse:
                for node in cluster:
                    fused_cluster.add(node)
                clusters.remove(cluster)
            clusters.append(fused_cluster)
        else:
            clusters.append({a, b})
    clusters_len = list(map(len, clusters))
    return [min(clusters_len), max(clusters_len)]