0_0_13497789_4553.cpp: In function 'int main()':
0_0_13497789_4553.cpp:6:16: error: 'a' was not declared in this scope
while(cin>>a>>b) {cout<<a+b<<endl;}
^
0_0_13497789_4553.cpp:6:19: error: 'b' was not declared in this scope
while(cin>>a>>b) {cout<<a+b<<endl;}
^
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