function fruitShop(input) {
    let fruit = input[0];
    let day = input[1];
    let fruitsCount = Number(input[2]);
    let finalSum = 0;
    if (day === "Monday") {
        switch (fruit) {
            case "banana": finalSum = fruitsCount * 2.50; break;
            case "apple": finalSum = fruitsCount * 1.20; break;
            case "orange": finalSum = fruitsCount * 0.85; break;
            case "grapefruit": finalSum = fruitsCount * 1.45; break;
            case "kiwi": finalSum = fruitsCount * 2.70; break;
            case "pineapple": finalSum = fruitsCount * 5.50; break;
            case "grapes": finalSum = fruitsCount * 3.85; break;
        }
    } else if (day === "Tuesday") {
        switch (fruit) {
            case "banana": finalSum = fruitsCount * 2.50; break;
            case "apple": finalSum = fruitsCount * 1.20; break;
            case "orange": finalSum = fruitsCount * 0.85; break;
            case "grapefruit": finalSum = fruitsCount * 1.45; break;
            case "kiwi": finalSum = fruitsCount * 2.70; break;
            case "pineapple": finalSum = fruitsCount * 5.50; break;
            case "grapes": finalSum = fruitsCount * 3.85; break;
        }
    } else if (day === "Wednesday") {
        switch (fruit) {
            case "banana": finalSum = fruitsCount * 2.50; break;
            case "apple": finalSum = fruitsCount * 1.20; break;
            case "orange": finalSum = fruitsCount * 0.85; break;
            case "grapefruit": finalSum = fruitsCount * 1.45; break;
            case "kiwi": finalSum = fruitsCount * 2.70; break;
            case "pineapple": finalSum = fruitsCount * 5.50; break;
            case "grapes": finalSum = fruitsCount * 3.85; break;
        }
    } else if (day === "Thursday") {
        switch (fruit) {
            case "banana": finalSum = fruitsCount * 2.50; break;
            case "apple": finalSum = fruitsCount * 1.20; break;
            case "orange": finalSum = fruitsCount * 0.85; break;
            case "grapefruit": finalSum = fruitsCount * 1.45; break;
            case "kiwi": finalSum = fruitsCount * 2.70; break;
            case "pineapple": finalSum = fruitsCount * 5.50; break;
            case "grapes": finalSum = fruitsCount * 3.85; break;
        }
    } else if (day === "Friday") {
        switch (fruit) {
            case "banana": finalSum = fruitsCount * 2.50; break;
            case "apple": finalSum = fruitsCount * 1.20; break;
            case "orange": finalSum = fruitsCount * 0.85; break;
            case "grapefruit": finalSum = fruitsCount * 1.45; break;
            case "kiwi": finalSum = fruitsCount * 2.70; break;
            case "pineapple": finalSum = fruitsCount * 5.50; break;
            case "grapes": finalSum = fruitsCount * 3.85; break;
        }
    } else if (day === "Saturday") {
        switch (fruit) {
            case "banana": finalSum = fruitsCount * 2.70; break;
            case "apple": finalSum = fruitsCount * 1.25; break;
            case "orange": finalSum = fruitsCount * 0.90; break;
            case "grapefruit": finalSum = fruitsCount * 1.60; break;
            case "kiwi": finalSum = fruitsCount * 3.00; break;
            case "pineapple": finalSum = fruitsCount * 5.60; break;
            case "grapes": finalSum = fruitsCount * 4.20; break;
        }
    } else if (day === "Sunday") {
        switch (fruit) {
            case "banana": finalSum = fruitsCount * 2.70; break;
            case "apple": finalSum = fruitsCount * 1.25; break;
            case "orange": finalSum = fruitsCount * 0.90; break;
            case "grapefruit": finalSum = fruitsCount * 1.60; break;
            case "kiwi": finalSum = fruitsCount * 3.00; break;
            case "pineapple": finalSum = fruitsCount * 5.60; break;
            case "grapes": finalSum = fruitsCount * 4.20; break;
        }
    }
   if(day !=="Monday" && day !=="Tuesday" && day !=="Wednesday" && day !== "Thursday" && day !=="Friday" && day !== "Saturday" && day !=="Sunday" || fruit!=="banana"&&fruit!=="apple"&&fruit!=="orange"&&fruit!=="grapefruit"&&fruit!=="kiwi"&&fruit!=="pineapple"&&fruit!=="grapes"){
console.log("error");
   }else{
    console.log(finalSum.toFixed(2));
   }
}