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#include <bits/stdc++.h>
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using namespace std;
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int main() {
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int y,b,r;
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scanf("%d%d%d",&y,&b,&r);
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int i;
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for(i=1;;i++)
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{
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if(i==y||i+1==b||i+2==r)
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break;
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}
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printf("%d",i*3+3);
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return 0;
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} |
