1(minecraft:obsidian),
2(minecraft:quartz_block),
3(minecraft:iron_bars[east=true,north=false,south=false,waterlogged=false,west=true]),
4(minecraft:iron_bars[east=false,north=true,south=true,waterlogged=false,west=false])
||
HLLLLFFFFP(1)RP(1)RP(1)RP(1)RP(1)LLLLBP(1)RP(2)RP(2)RP(2)RP(1)LLLLBP(1)RP(2)RP(2)RP(2)RP(1)LLLLBP(1)RP(2)RP(2)RP(2)RP(1)LLLLBP(1)RP(1)RP(1)RP(1)RP(1)LLLLUFFFFP(1)RP(3)RP(3)RP(3)RP(1)LLLLBP(4)RRRRP(4)LLLLBP(4)RRP(1)RRP(4)LLLLBP(4)RRRRP(4)LLLLBP(1)RP(3)RP(3)RP(3)RP(1)LLLLUFFFFP(1)RP(3)RP(3)RP(3)RP(1)LLLLBP(4)RRRRP(4)LLLLBP(4)RRP(1)RRP(4)LLLLBP(4)RRRRP(4)LLLLBP(1)RP(3)RP(3)RP(3)RP(1)LLLLUFFFFP(1)RP(3)RP(3)RP(3)RP(1)LLLLBP(4)RRRRP(4)LLLLBP(4)RRP(1)RRP(4)LLLLBP(4)RRRRP(4)LLLLBP(1)RP(3)RP(3)RP(3)RP(1)LLLLUFFFFP(1)RP(1)RP(1)RP(1)RP(1)LLLLBP(1)RP(2)RP(2)RP(2)RP(1)LLLLBP(1)RP(2)RP(2)RP(2)RP(1)LLLLBP(1)RP(2)RP(2)RP(2)RP(1)LLLLBP(1)RP(1)RP(1)RP(1)RP(1)