#include <iostream> using namespace std; int N,a,b; int d[100000]; int main() { cin >> N; for(int i=1;i<N;i++) { cin >> a >> b; d[a-1]++, d[b-1]++; } int D = 0; for(int i=0;i<N;i++) if(d[i] > D) D = d[i]; cout << D+1 << '\n'; }