eBGDAEBlet ringlet ring1=7362444432362444645=10024(2)(2)(2)44624(2)(4)(2)(4)(2)(4)724(2)(2)(2)824(2)(4)(2)(4)(2)(4)924(2)(2)(2)1024(2)(4)(2)(4)(2)(4)1124(2)(4)(2)(4)(2)(4)1222222222138x2222222214let ringlet ring15=12016=73624417=6218=736244let ringlet ring19=6220=73624421=6222=73624423=622424=1002222222244254x22222222let ringlet ring262272222824429let ringlet ringlet ring30244312223224433let ringlet ringlet ring342443522236244373839