function solve(input) {

let fruit = input[0];

let day = input[1];

let quantity = +input[2];

let result = 0;



switch (fruit) {



case 'banana':

switch (day) {

  case 'Monday':
result = quantity * 2.50;
break;

case 'Tuesday':
result = quantity * 2.50;
break;

case 'Wednesday':
result = quantity * 2.50;
break;

case 'Thursday':
result = quantity * 2.50;
break;

case 'Friday':
result = quantity * 2.50;
break;

case 'Saturday':
result = quantity * 2.70;
break;

case 'Sunday':
result = quantity * 2.70;
break;

}

break;

case 'apple':

switch (day) {

  case 'Monday':
result = quantity * 1.20;
break;

case 'Tuesday':
result = quantity * 1.20;
break;

case 'Wednesday':
result = quantity * 1.20;
break;

case 'Thursday':
result = quantity * 1.20;
break;

case 'Friday':
result = quantity * 1.20;
break;

case 'Saturday':
result = quantity * 1.25;
break;

case 'Sunday':
result = quantity * 1.25;
break;

}

break;


case 'orange':

switch (day) {

  case 'Monday':
result = quantity * 0.85;
break;

case 'Tuesday':
result = quantity * 0.85;
break;

case 'Wednesday':
result = quantity * 0.85;
break;

case 'Thursday':
result = quantity * 0.85;
break;

case 'Friday':
result = quantity * 0.85;
break;

case 'Saturday':
result = quantity * 0.90;
break;

case 'Sunday':
result = quantity * 0.90;
break;

}

break;


case 'grapefruit':

switch (day) {

  case 'Monday':
result = quantity * 1.45;
break;

case 'Tuesday':
result = quantity * 1.45;
break;

case 'Wednesday':
result = quantity * 1.45;
break;

case 'Thursday':
result = quantity * 1.45;
break;

case 'Friday':
result = quantity * 1.45;
break;

case 'Saturday':
result = quantity * 1.60;
break;

case 'Sunday':
result = quantity * 1.60;
break;

}

break;


case 'kiwi':

switch (day) {

  case 'Monday':
result = quantity * 2.70;
break;

case 'Tuesday':
result = quantity * 2.70;
break;

case 'Wednesday':
result = quantity * 2.70;
break;

case 'Thursday':
result = quantity * 2.70;
break;

case 'Friday':
result = quantity * 2.70;
break;

case 'Saturday':
result = quantity * 3.00;
break;

case 'Sunday':
result = quantity * 3.00;
break;

}

break;


case 'pineapple':

switch (day) {

  case 'Monday':
result = quantity * 5.50;
break;

case 'Tuesday':
result = quantity * 5.50;
break;

case 'Wednesday':
result = quantity * 5.50;
break;

case 'Thursday':
result = quantity * 5.50;
break;

case 'Friday':
result = quantity * 5.50;
break;

case 'Saturday':
result = quantity * 5.60;
break;

case 'Sunday':
result = quantity * 5.60;
break;

}

break;




case 'grapes':

switch (day) {

  case 'Monday':
result = quantity * 3.85;
break;

case 'Tuesday':
result = quantity * 3.85;
break;

case 'Wednesday':
result = quantity * 3.85;
break;

case 'Thursday':
result = quantity * 3.85;
break;

case 'Friday':
result = quantity * 3.85;
break;

case 'Saturday':
result = quantity * 4.20;
break;

case 'Sunday':
result = quantity * 4.20;
break;

}

break;





default:
console.log('error');
break;

}



console.log(result.toFixed(2));




}

solve([

    'grapes',
    'Saturday',
    '0.5'

]);