function splitSum(sum, splits){
let result = [];
let a = parseInt(sum)/parseInt(splits)
for(let i = 0; i<parseInt(splits); i++) {
result[i] = i%2 ? Math.round( (a+(a/(i+3)))/10 )*10 : Math.round( (a-(a/(i+2)))/10) *10
};
var all_sum = 0;
result.map(v => all_sum +=v)
result[result.length - 1] += Math.round(parseInt(all_sum) - parseInt(sum))
return result;
}