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a2        -2.72687301190166
a3        0.448463189159152
a4        -0.454032369309838
a6        0.844340422779724
a5        0.263760304897529

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a2        -2.72687301413388
a3        0.448463189230861
a4        -0.454032369370618
a6        0.844340422723348
a5        0.263760304969923

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