function c(e,t){for(var n=[],a=[],r=function(r){var i=n.find((function(n){return n[0]===t-e[r]}));if(i)return a.push(i[1]),a.push(r),"break";n.push([e[r],r])},i=0;i<e.length;i++){if("break"===r(i))break}return a}