BEGIN { FS="\t"; a=0; b=0; both=0; neither=0 }
FNR==1 { next }
{
    hasA = ($12 != ".")
    hasB = ($13 != ".")
    if (hasA && hasB) both++
    else if (hasA) a++
    else if (hasB) b++
    else neither++
}
END {
    print "Method A only (gene body window): " a
    print "Method B only (nearest TSS):       " b
    print "Both methods:                       " both
    print "Neither (dot):                      " neither
}