#include<iostream> using namespace std; #include<fstream> ifstream f("doc1.txt"); int c1,c2,n; void replace(int &n,int c1,int c2) { int k=1; while(k<n) { if(n/k%10==c1) n=(n/(k*10)*10+c2)*k+n%k; k*=10; } } int main() { while(!f.eof()) { f>>n>>c1>>c2; if(n!=0) { replace(n,c1,c2); cout<<n<<endl; } } }