#include <bits/stdc++.h>
#include <atcoder/modint>
using namespace std;
using namespace atcoder;
#define overload4(_1, _2, _3, _4, name, ...) name
#define rep1(n) for(int i = 0; i < (int)(n); ++i)
#define rep2(i, n) for(int i = 0; i < (int)(n); ++i)
#define rep3(i, a, b) for(int i = (a); i < (int)(b); ++i)
#define rep4(i, a, b, c) for(int i = (a); i < (int)(b); i += (c))
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
using ll = long long;
using ld = long double;
using u16 = uint16_t;
int main(){
	int a,b,c;
	cin >> a >> b >> c;
	int x = a*c + b*c + a*b;
	x *= 2;
	int y = a*b*c;
	cout << (y < x ? 2 : 3) << endl;
}