}

	filter := func(list []uint64) (commonCount uint64) {
		maxCnt := 0
		signatureMap := map[uint64]int{}
		for _, v := range list {
			signatureMap[v]++
		}
		for ops, count := range signatureMap {
			if maxCnt < count && commonCount < ops {
				maxCnt = count
				commonCount = ops
			}
		}
		if maxCnt < readQuorum {
			return 0
		}
		return commonCount
	}

	commonWrite = filter(writes)