壓縮過連 telegram 都貼得下
const recurr=e=>e((e=>e(e))(t=>o=>e(t(t))(o)));recurr(e=>t=>o=>c=>d=>n=>r=>_=>i=>{t[o](e)(t)(c)(d)(n)(r)(_)(i)})({code_act:e=>t=>o=>c=>d=>n=>r=>_=>{if(t[d[n]]){e(t)(d[n])(o)(c)(d)(n)(r)(_)}},">":e=>t=>o=>c=>d=>n=>r=>_=>e(t)("code_next")(o)(c+1)(d)(n)(r)(_),"<":e=>t=>o=>c=>d=>n=>r=>_=>e(t)("code_next")(o)(c-1)(d)(n)(r)(_),"+":e=>t=>o=>c=>d=>n=>r=>_=>(o[c]++,e(t)("code_next")(o)(c)(d)(n)(r)(_)),"-":e=>t=>o=>c=>d=>n=>r=>_=>(o[c]--,e(t)("code_next")(o)(c)(d)(n)(r)(_)),"[":e=>t=>o=>c=>d=>n=>r=>_=>o[c]===0?e(t)("code_next_until")(o)(c)(d)(n)(r)(r):e(t)("code_next")(o)(c)(d)(n)(r)(r),"]":e=>t=>o=>c=>d=>n=>r=>_=>o[c]!==0?e(t)("code_prev_until")(o)(c)(d)(n)(r)(r):e(t)("code_next")(o)(c)(d)(n)(r)(r),".":e=>t=>o=>c=>d=>n=>r=>_=>(process.stdout.write(String.fromCharCode(o[c])),e(t)("code_next")(o)(c)(d)(n)(r)(r)),",":e=>t=>o=>c=>d=>n=>r=>_=>{throw new Error("not implement");o[c]=prompt("input char").charCodeAt(0);e(t)("code_next")(o)(c)(d)(n)(r)(r)},code_next:e=>t=>o=>c=>d=>n=>r=>_=>e(t)("code_act")(o)(c)(d)(n+1)(r+(d[n]==="[")-(d[n+1]==="]"))(_),code_next_until:e=>t=>o=>c=>d=>n=>r=>_=>{do{r=r+(d[n]==="[")-(d[n+1]==="]");n++}while(r!==_);e(t)("code_act")(o)(c)(d)(n)(r)(_)},code_prev_until:e=>t=>o=>c=>d=>n=>r=>_=>{do{r=r-(d[n-1]==="[")+(d[n]==="]");n--}while(r!==_);e(t)("code_act")(o)(c)(d)(n)(r)(_)}})("code_act")(new Uint8Array(256))(0)("++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.")(0)(0)(0);