Minimum exchange operations : 0
Minimum exchange operations : 3
Minimum exchange operations : 3
Minimum exchange operations : 3
Minimum exchange operations : 5
Minimum exchange operations : 3
Minimum exchange operations : 18
Minimum exchange operations : 25
Minimum exchange operations : 14
Minimum exchange operations : 112
Minimum exchange operations : 203
Minimum exchange operations : 398
Minimum exchange operations : 599
Minimum exchange operations : 877
Minimum exchange operations : 1111
Minimum exchange operations : 1635
Minimum exchange operations : 1971
Minimum exchange operations : 2206
Minimum exchange operations : 2854
Minimum exchange operations : 3242
Minimum exchange operations : 4457
Minimum exchange operations : 4437
Minimum exchange operations : 5786
Minimum exchange operations : 6780
Minimum exchange operations : 6782
Minimum exchange operations : 8565
Minimum exchange operations : 9026
Minimum exchange operations : 9726
Minimum exchange operations : 11613
Minimum exchange operations : 11654
Minimum exchange operations : 13434
Minimum exchange operations : 16458
Minimum exchange operations : 15403
Minimum exchange operations : 16407
Minimum exchange operations : 19408
Minimum exchange operations : 18030
Minimum exchange operations : 20412
Minimum exchange operations : 21000
Minimum exchange operations : 24483
Minimum exchange operations : 26695
Minimum exchange operations : 26453
Minimum exchange operations : 28146
Minimum exchange operations : 29777
Minimum exchange operations : 30583
Minimum exchange operations : 33988
Minimum exchange operations : 36027
Minimum exchange operations : 37946
Minimum exchange operations : 38960
Minimum exchange operations : 45009
Minimum exchange operations : 43787
Minimum exchange operations : 44943
Minimum exchange operations : 45110
Minimum exchange operations : 49378
Minimum exchange operations : 51892
Minimum exchange operations : 56872
Minimum exchange operations : 56577
Minimum exchange operations : 62635
Minimum exchange operations : 62782
Minimum exchange operations : 65351
Minimum exchange operations : 65363
Minimum exchange operations : 73986
Minimum exchange operations : 75492
Minimum exchange operations : 78479
Minimum exchange operations : 74501
Minimum exchange operations : 81720
Minimum exchange operations : 87741
Minimum exchange operations : 83353
Minimum exchange operations : 88472
Minimum exchange operations : 90468
Minimum exchange operations : 99080
Minimum exchange operations : 101516
Minimum exchange operations : 99537
Minimum exchange operations : 106158
Minimum exchange operations : 109877
Minimum exchange operations : 111530
Minimum exchange operations : 113619
Minimum exchange operations : 116635
Minimum exchange operations : 126292
Minimum exchange operations : 130462
Minimum exchange operations : 132670
Minimum exchange operations : 134786
Minimum exchange operations : 136260
Minimum exchange operations : 141927
Minimum exchange operations : 143064
Minimum exchange operations : 149420
Minimum exchange operations : 151251
Minimum exchange operations : 155743
Minimum exchange operations : 165287
Minimum exchange operations : 162772
Minimum exchange operations : 163868
Minimum exchange operations : 170392
Minimum exchange operations : 175160
Minimum exchange operations : 181826
Minimum exchange operations : 188793
Minimum exchange operations : 188263
Minimum exchange operations : 195696
Minimum exchange operations : 196730
Minimum exchange operations : 200543
Minimum exchange operations : 208572
Minimum exchange operations : 206918
Minimum exchange operations : 221206
Minimum exchange operations : 225970
Minimum exchange operations : 227627
Minimum exchange operations : 229985
Minimum exchange operations : 233421
Minimum exchange operations : 246770
Minimum exchange operations : 246635
Minimum exchange operations : 247595
Minimum exchange operations : 0