Select the operation you want to perfom
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Some list examples:
2000,10,800,1,50,10000,400,850,5000
1,2,2,3,3,3,4,4,4,4,5,5,5,5,5,6,6,6,6,6,6,
7,7,7,7,7,7,7,8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,9
1,2,5,3,9,7,1,3,5,8,1,5,4,6,8,0,0,6,7,9,4,8,2,3,3,1,6,5,2,0,3,7,8
15,11,2001,117,343,216,125,28,134