emoji "+"and "-". The emoji of "+"in the field of social security represents the first national unified bidding for the basic old-age insurance for urban and rural residents, the "dual-track system" and the "merger", the introduction of the investment method of the old-age insurance fund, the pilot coverage of the national enrollment registration plan of 5%, the issuance of social security cards exceeding 8 million, the full implementation of serious illness insurance for urban and rural residents, the issuance of commemorative medals to anti-Japanese war veterans and the solatium, and other benefits that add luster to people's livelihood.