function solution(name) {    
    let ans = 0;
    let targetCount = 0;
    
    const y = name.split('').map(c => {
        const height = c.charCodeAt()-65;
        if(height){
            ans+=height < 13 ? height : 26-height;
            targetCount++;
        }
        return height;
    });
    
    const round = [...y, ...y];
    
    let current = y.length;
    let left = current;
    let right = current;
    let count = 0;
    
    while(count<targetCount){
     
        while(!round[left]){
            left--;
        };
        
        while(!round[right]) {
            right++;
        };
        
        const leftDx = current-left;
        const rightDx = right - current;
        
        if(leftDx < rightDx){
            ans+=leftDx;
            current = left;
            round[left] = 0;
        }else{
            ans+=rightDx;
            current = right;
            round[right] = 0;
        }

        count++;
    }
    
    return ans;
}