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- #include <stdio.h>
- int main()
- {
- int n,x;
- scanf("%d %d", &n,&x);
- int b=1; int m=1;
- while(m)
- { for(int j=n; j>0; j=j/10)
- {
- for(int i=x; i>0; i=i/10)
- {if(i%10==j%10)
- b=1;
- }
- }
- if(b==1)
- n--;
- else
- m=0;
- b=0;
- }
- printf("%d", n);
- }
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