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- #include<bits/stdc++.h>
- using namespace std;
- int main(){
- long long A,B,C,sum=0;
- char c1,c2;
- while(~scanf("%lld%c%lld%c%lld",&A,&c1,&B,&c2,&C)){
- if(c1=='+'){
- if(A+B==C)
- sum++;
- }
- else if(c1=='-'){
- if(A-B==C)
- sum++;
- }
-
- }
- cout<<"RIGHT:"<<sum<<endl;
- }
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