[['rank', 'prev', 'player', 'rating', 'chng'], ['1', '3', 'vladimir kramnik ( rus )', '2799', '+ 14'], ['2', '1', 'viswanathan anand ( ind )', '2799', '- 2'], ['3', '4', 'veselin topalov ( bul )', '2780', '+ 11'], ['4', '6', 'alexander morozevich ( rus )', '2765', '+ 10'], ['5', '12', 'peter svidler ( rus )', '2763', '+ 31'], ['6', '7', 'shakhriyar mamedyarov ( aze )', '2760', '+ 8'], ['7', '10', 'alexei shirov ( esp )', '2755', '+ 16'], ['8', '5', 'peter leko ( hun )', '2753', '2'], ['9', '2', 'vassily ivanchuk ( ukr )', '2753', '36'], ['10', '9', 'levon aronian ( arm )', '2739', '2']]
the average Chng between Alexander Morozevich and Shakhriyar Mamedyarov is + 9
the average [ENT] between [ENT] and [ENT] is + [ENT]