mutation

function mutation(arr) {
	var first = arr[0].toUpperCase();
	var second = arr1.toUpperCase();
	var flag = 1;
	for(var i=0;i<second.length;i++){
	if(first.indexOf(second[i])==-1){
		flag = 0;
	}
}
	return (flag==1)?true:false;
}