Simple Symbols

simple_symbols.js

function SimpleSymbols(str) { 
	if ( str.length == 0 || !str.match(/[a-zA-Z]/) )
		return false;
  for ( var i = 0; i < str.length; i++ ) {
    if ( str[i].match(/[a-zA-Z]/) ) {
      var v = [str[i-1] == '+', str[i+1] == '+'].every(function (e, idx, ary) {
				return ( e == true );
			});
			if ( v == false )
				return false;
    }
  }
  return v;      
}
   
// keep this function call here 
// to see how to enter arguments in JavaScript scroll down
SimpleSymbols(readline());