#!/usr/bin/env python2
# -*- coding: utf-8 -*-
def is_numeric(InputList):
    OutputLits = []
    for i in range(len(InputList)):
        t = InputList[i]
        OutputLits.append(isinstance(t,(int, float)))
    #print(isinstance(x,(int, float)))
    return OutputLits


class Point:
    def __add__(self, other):
        if len(self.cor)!=len(other.cor):
            raise DimensionError("DimesnsionError")
        else:
            return [i+j for (i,j) in zip(self.cor,other.cor)]
    def __init__(self, cor):
        if (is_numeric(cor)):
            self.cor=cor
        else:
            raise Exception("Wrong input")
    def __len__(self):
        return len(self.cor)
    def __str__(self):
        return(str(self.cor))
    def __to_string__(self):
        return(str(self.cor))
class DimensionError(Exception):
    def __init__(self, text):
        self.text = text
    def __str__(self):
        return self.text

test=Point([2,5])
print(str(test))
print(len(test))