#!/bin/sh


tohuman() awk -v COL=$1 '{
	raw = $COL
	new = raw
	for (i=1; i<6;i++) {
		if (raw >= 1000**i) {
			if (i == 1) {
				v = raw / 1000
				new = v "K"
			}
			if (i == 2) {
				v = raw / 1000000
				new = v "M"
			}
			if (i == 3) {
				v = raw / 1000000000
				new = v "G"
			}
			if (i == 4) {
				v = raw / 1000000000000
				new = v "T"
			}
			if (i == 5) {
				v = raw / 1000000000000000
				new = v "P"
			}
		}
	}
	$1 = new
	print
}'

col=${1:-1}

tohuman "$col"