function solve(input){
let name = input.shift();
let sum = 1;
let counter = 0;
let exluded = 0;
let isExluded = false;

while(counter <= 12){
    let garde = Number(input.shift());
if( garde < 4.0){
    exluded++;
}
if(garde >= 4.00){
    sum += garde;
    counter++;

 }
 if(exluded >= 2){
     isExluded = true;
     break;
 }
}
if(isExluded == false){
    let average = sum / 12;
    console.log(`${name} graduated. Average grade: ${average.toFixed(2)}`);
}else{
    console.log(`${name} has been excluded at ${counter.toFixed(2)} grade`);
}
}
solve([
    'Gosho', '5',    '5.5',
    '6',     '5.43', '5.5',
    '6',     '5.55', '5',
    '6',     '6',    '5.43',
    '5'
  ]);