#!/bin/bash
input="/home/students/s416142/Desktop/test/paranormal-or-skeptic/mostcont"
while IFS= read -r line
do
    p=`xzcat in.tsv.xz | paste expected.tsv - |grep "P.* $line" | wc -l`
    s=`xzcat in.tsv.xz | paste expected.tsv - |grep "S.* $line" | wc -l`
    diff=$((p-s))
    if [ $p -ge $s ]
    then
        echo "$line, $diff"
    fi
done < "$input"