Let S be a set of distinct 20 integers. A set TA is defined as TA:={s1+s2+s3∣s1,s2,s3∈S}. What is the smallest possible cardinality of TA?
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Let S be a set of distinct 20 integers. A set TA is defined as TA:={s1+s2+s3∣s1,s2,s3∈S}. What is the smallest possible cardinality of TA?