#include <bits/stdc++.h>   using namespace std;   int a, b, c, res;   void mo() {     freopen( 1091A.inp ,  r , stdin);     freopen( 1091A.out ,  w , stdout);   }   void nhap() { cin >> a >> b >> c; }   void xuli() {     if (c - 1 <= b && c - 2 <= a) {       res = max(res, c + c - 1 + c - 2);     }     if (b + 1 <= c && b - 1 <= a) {       res = max(res, b + b + 1 + b - 1);     }     if (a + 1 <= b && a + 2 <= c) res = max(res, a + 1 + a + a + 2);     cout << res;   }   int main() {     nhap();     xuli();   }   