#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int a,b,c; cin>>a>>b>>c； if(a+b>c&&a-b<c){ cout<<"xxxxx1"<<endl; if(a==b==c) cout<<"xxxxx2"<<endl; if(a==b||b==c||a==b) cout<<"xxxxx3"<<endl; if(a*a==b*b+c*c||b*b==a*a+c*c||c*c==b*b+a*a) cout<<"xxxxx4"<<endl; } return 0; }