: (pi, qi ).
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.
Turbo Pascal .
N, 1,..., 25, 1,..., BN.
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.
Turbo Pascal .
N.
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, .
2. .
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Turbo Pascal .
.
1. . , , , . , .
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Turbo Pascal .
.
1. 15 , .
2. .
Turbo Pascal .
20 .
1. 5 , .
2. .
Turbo Pascal .
.
1. . - .
2. .
.