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| #include <iostream> #include <cstdio> using namespace std; int main() { int a,da,b,db; int pa=0,pb=0; scanf("%d %d %d %d",&a,&da,&b,&db); while(a){ if(a%10 == da){ pa= pa*10; pa+=da; } a= a/10; } while(b){ if(b%10 == db){ pb= pb*10; pb+=db; } b= b/10; } cout<<(pa+pb)<<endl; return 0; }
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