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xum (1791) - megaton (1643)
0
1
1
0
0
1
½
½
½
½
0
1
0
1
1
0
0
1
0
1
½
½
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
megaton
xum
36
98
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