56
57
58
59
60 >
a
b
c
c
d
d
e
e
f
f
x
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56 |
57 |
58 |
59 |
60 > |
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a |
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b |
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c |
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c |
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d |
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d |
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e |
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e |
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f |
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f |
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x |
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[PF80Pfg.]