#include<stdio.h>
int main()
{
long long int i=0,n;
while(1)
{n=i;
if(n%7==3)
{
n=n/7;
if(n%11==4)
{
n=n/11;
if(n%13==5)
{
break;}}}
i++;
}
return 0;
}
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