#include <stdio.h>
int main(void) {
int a,b,c;
if((a==b)&&(a==c))
{
printf("aはbと等しい、かつ、aはcと等しい。\n"); }
else if((a==b)||(a==c))
{
printf("aはbと等しい、または、aはcと等しい。\n"); }
else if(b==c)
{
if(a<b)
{
}
else
{
}
}
else
{
}
// your code goes here
return 0;
}
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