function FF(str){
let index = 0
let count2 = 0
let arr = []
let obj = {}
let maxNum = 0
for(let i = 0; i < str.length; i++){
let count = 0
for(let j = 0; j < str.length; j++){
if(str[i] === str[j]){
count = count + 1
}
}
if(count > maxNum){
maxNum = count
}
if(str[i] !== ' '){
obj[str[i]] = count
}
arr.push(str[i])
}
for(let v = 0; v < arr.length; v++){
if(arr[0] === arr[v] && arr[v] === ' '){
result = result + ' '
}
for(let el2 in obj){
if(el2 === arr[v] && obj[el2] === maxNum){
count2 = count2 + 1
index = v
}
}
}
for(let l = 0; l < arr.length; l++){
for(let el3 in obj){
if(el3 === arr[l] && obj[el3] === maxNum){
return arr[l]
}
}
}
// TODO: 여기에 코드를 작성합니다.
}
function FF(str){
let result = ''
let index = 0
let obj2 = {}
let strArr = []
let obj = {}
let maxNum = 0
for(let i = 0; i < str.length; i++){
let count = 0
for(let j = 0; j < str.length; j++){
if(str[i] === str[j]){
count = count + 1
}
}
if(count > maxNum){
maxNum = count
}
if(str[i] !== ' '){
obj[str[i]] = count
}
strArr.push(str[i])
}
for(let v = 0; v < strArr.length; v++){
if(strArr[0] === strArr[v] && strArr[v] === ' '){
result = result + ' '
}
for(let el2 in obj){
if(el2 === strArr[v] && obj[el2] === maxNum){
obj2[str[v]] = v
}
}
}
for(let el3 in obj2){
for(let el4 in obj2){
if(obj2[el3] > obj2[el4]){
index = obj2[el4]
console.log(index)
}
}
console.log(index)
result = strArr[index]
}
console.log(obj)
console.log(obj2)
console.log(strArr)
console.log(maxNum)
return result
// TODO: 여기에 코드를 작성합니다.
}