#include <stdio.h>
int main()
{
int i,j,n=0,x;
for(i=23;n==0;i+=2)
{
for(j=1,x=i;j<=4&&x>=11;j++)
if(0==(x+1)%(j+1))
x-=(x+1)/(j+1);
else
{
x=0;
break;
}
if(j==5&&x==11)
{
printf("There are %d fishes at first.\n",i);
n=1;
}
}
return 0;
}
int main()
{
int i,j,n=0,x;
for(i=23;n==0;i+=2)
{
for(j=1,x=i;j<=4&&x>=11;j++)
if(0==(x+1)%(j+1))
x-=(x+1)/(j+1);
else
{
x=0;
break;
}
if(j==5&&x==11)
{
printf("There are %d fishes at first.\n",i);
n=1;
}
}
return 0;
}