#!/bin/bash

recursiveBuild()
{
        if [ $2 = $4 ]
        then
                return 0
        else
                local first=$(($2+1))
                local second=$3
                local incsecond=$(($3+1))
                mkdir $1$first$second
                mkdir $1$first$incsecond
                cd $1$first$second
                recursiveBuild $1 $first $((2*$second-1)) $4
                cd ..
                cd $1$first$incsecond
                first=$(($2+1))
                second=$3
                incsecond=$(($3+1))
                #echo "$1 $first $((2*$incsecond-1)) $4"
                recursiveBuild $1 $first $((2*$incsecond-1)) $4
                cd ..
        fi

}

mkdir $1"11"
cd $1"11"
recursiveBuild $1 1 1 $2