#include <stdio.h>
int main(void)
{
int a, b, c, i;
i=0;
if (a==b)
i=1;
if (b==c);
i=1;
if (a==b && b==c)
i=2;
if (a!=b && b!=c & a!=c)
i=0;
return 0;
}
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