#include <stdio.h>
#include <string.h>
int main()
{
char str[100],c,*p=str;
int t;
fgets(str, 100, stdin);
scanf("%c",&c);
t=strlen(str);
for(int i=0;i<=t;i++)
{
*p=str[i];
if (*p != c) p++;
}
printf("%s", str);
return 0;
}
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