import argparse
class Employee:
    def __init__(self,no_of_employee):
        self.no_of_employee=no_of_employee
        print("no of employee",self.no_of_employee)

    def add(self,a,b):
        print(a+b)

if __name__=='__main__':
    parser=argparse.ArgumentParser()
    parser.add_argument('no_of_employee',help="employee",type=int)
    parser.add_argument('a',help="employee",type=int)
    parser.add_argument('b',help="employee",type=int)
    args=parser.parse_args()
    g=Employee(args.no_of_employee)
    g.add(args.a,args.b)