1 #include<iostream> 2 #include<algorithm> 3 #define MAXN 15 4 using namespace std; 5 6 //int rec[MAXN]; 7 8 int main() 9 { 10 //freopen("acm.acm","r",stdin); 11 int ans; 12 int x; 13 int y; 14 int dight_x; 15 int dight_y; 16 int i; 17 int rec; 18 while(cin>>x>>y) 19 { 20 if(!x&&!y) 21 break; 22 ans = 0; 23 i = 0; 24 rec = 0; 25 while(y||x) 26 { 27 dight_x = x%10; 28 dight_y = y%10; 29 x /= 10; 30 y /= 10; 31 if(rec + dight_x + dight_y > 9) 32 { 33 rec = 1; 34 ++ ans; 35 } 36 else 37 rec = 0; 38 } 39 if(ans == 0) 40 cout<<"No carry operation."<<endl; 41 else if(ans > 1) 42 cout<<ans<<" carry operations."<<endl; 43 else 44 cout<<ans<<" carry operation."<<endl; 45 } 46 }