#include  <stdio.h>
#include  <stdlib.h>
#include  <math.h>
#define   EPS 1e-6
int main(void)
{
    float  a, b, c, disc, p, q;
    scanf("%f,%f,%f", &a
, &b
, &c
);     {
        printf("It is not a quadratic equation!\n");     }
 
    return 0;
}
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