// Find the index of a string in a given sentence
function findNemo(sentence) {
    let indexOfFirst = sentence.split(' ').indexOf('Nemo') + 1;
    if(indexOfFirst >= 0){
        return `I found Nemo at ${indexOfFirst}!`;
    }
    return ("I can't find Nemo :(");
}


console.log(findNemo("I am finding Nemo !"));   //"I found Nemo at 4!"
console.log(findNemo("Nemo is me"));            //"I found Nemo at 1!"
console.log(findNemo("I Nemo am"));             //"I found Nemo at 2!"