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#include "util.h"
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int wrap(int i, int max) {
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return ((i % max) + max) % max;
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}
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int numlen(int n) {
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if (n >= 1000000) return 7;
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if (n >= 100000) return 6;
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if (n >= 10000) return 5;
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if (n >= 1000) return 4;
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if (n >= 100) return 3;
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if (n >= 10) return 2;
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return 1;
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}
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