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## Comments

6 of the pairs are the identities \((x,x)\). The other four are due to the partitions with two elements each.

\((11,11),(12,12),(13,13),(21,21),(22,22),(23,23), \\ (11,12),(12,11), \\ (22,23),(23,22)\)

`6 of the pairs are the identities \\((x,x)\\). The other four are due to the partitions with two elements each. \\((11,11),(12,12),(13,13),(21,21),(22,22),(23,23), \\\\ (11,12),(12,11), \\\\ (22,23),(23,22)\\)`