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  B2_Nguyen_Bach_Long_Nhat  commented on July 13, 2025, 7:29 a.m.

  include <bits/stdc++.h>

  using namespace std; long long a,b,c; int main () { cin>>a>>b>>c; if(a+b>c and a+c>b and c+b>a) cout<<"YES"; else cout<<"NO"; return 0; }