#include<bits/stdc++.h> using namespace std; using namespace std; int main(){ int n; cin>>n; for(int i=1;i<=n;i++){ int x; int sum; sum=0; cin>>x; while(x!=0){ sum+=x%10; x/=10; } if(sum%7==0){ cout<<"Yes"<<endl; } else cout<<"No"<<endl; } return 0; }

#include<iostream> using namespace std; int main(){ int a,b,c; cin>>a; for(int i=1;i<=a;i++){ cin>>b; c=0; while(b!=0){ c=c+b%10; b=b/10; } if(c%7==0){ cout<<"Yes"<<endl; } else{ cout<<"No"<<endl; } } return 0; }

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#include <iostream> using namespace std; int main(){ int n; cin>>n; int a; int sum; for (int i=1;i<=n;i++){ int sum=0; cin>>a; while (a>0){ sum=sum+a%10; a=a/10; } if (sum%7==0){ cout<<"Yes"; cout<<endl; } else{ cout<<"No"; cout<<endl; } } return 0; }