x = 100, y = 74
8bo7bo51bo7bo$boob3ob3o5boobo8bo27bo8boboo5b3ob3oboo$boo4bobbooboobb4o
5b4o25b4o5b4obbooboobbo4boo$obboboo3bobboobbo3bo3boo3bo10b3o10bo3boo3b
o3bobboobbo3boobobbo$12bo8bo3bo4bo10b3o10bo4bo3bo8bo$23boboobobobo7bo
3bo7boboboboobo$23boboo6bo17bo6boobo$18boobo5bo3boboo4bo5bo4boobo3bo5b
oboo$10bo7boo10boobobo3booboboo3boboboo10boo7bo$3boob3ob3o5boo16bo11bo
16boo5b3ob3oboo$3boo4bobbooboo19bo3bo3bo3bo19booboobbo4boo$bbobboboo3b
obboo19bo4bobo4bo19boobbo3boobobbo$14bo22bobbo3bobbo22bo$39bobobobo$
36boobobbobboboo$35bobobob3obobobo$35bobobbooboobbobo$36b3obbobobb3o$
37boboo3boobo$35boo3bo3bo3boo$35bobo4bo4bobo$37bobbobobobbo$37bob3ob3o
bo$37bobo5bobo$34boobobobbobboboboo$34boobobobbobboboboo$37bobob3obobo
$36bobb7obbo$10boboob3o49b3oboobo$9booboo4boobo16bo7bo16boboo4booboo$
8bobbobobbo3b3o18b3o18b3o3bobbobobbo$9bo5bo3bo3bo13b3o5b3o13bo3bo3bo5b
o$22boo4b3o5boob3ob3oboo5b3o4boo$22boobboobo9b3ob3o9boboobboo$23boo4bo
boo9bo9boobo4boo$28bobbobo3boo7boo3bobobbo$23boobobbobobobo13bobobobo
bboboo$27bo8bo11bo8bo$34bob13obo15boo10boo14boobo$66booboo3b5obo8boboo
booboo$64boo3boo3b3o3boo6booboobobobbo$65bobobbobbobobbob5obbo3bo6bo$
62boobobo4b3o3b3o3b4obo$57booboobobobobobbobbo4bo3bobo$57boo4bobobobb
6ob4o4b4o$55bobboboobobobobo3bobobobobo3b4o$54bo5boobobobobbo12bobbo$
54bo4boobobbobbo$53boobbobo4bo$34bo18boobooboboo3bo$34b3o11bo4bo3bobbo
boobboo3b3o$16boboo14b4o9bobo4bobb4obobo4b3oboo7b3oboo$15boobooboo15bo
7bobbo8bo7b4o5bo4boo4boo$14bobbobobbo15boo5boobbo6boo10bobobb3o3bo3bob
obbo$15bo5boo4boo6boboo7bobo17boobbo4boobb3o$24booboo5boobo11bo15bobob
ooboo3b3o$24boo3bo5boboo7booboo14bo4bobobbobbo$24boo43bo3bo3bo15$36boo
$36boo!

A period 45 c/3 puffer which produces just a single block every period.
David I. Bell, May 1996
