logical operators in C

Hi /prog/
I need to do this exact thing, but only using logical operators

it prints "OP is a faggot" when one of the numbers is negative and the other is 0 or positive
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#include <stdio.h>

int main ()

{
    int a;
    int b;

    puts("Ingrese un valor.\n");
    scanf("%d", a)
    puts("Ingrese otro valor.\n");
    scanf("%d", b)

    if (a<0)
    {
        if (b>=0)
        {
            puts "OP is a faggot"
        }
    } else {
        if (b<0)
        {
            puts "OP is a faggot"   
        }
    }
}
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Use Karnaugh maps.