bankinfo={
    123:["Ali",15000],
    888:["Khaled",11000],
    444:["fahd",11000]
}
print("Bank info state:",bankinfo)

accountno=int(input("enter an account number: "))
account=bankinfo.get(accountno)
balance=account[1]
amount=float(input("enter amount to be deposited"))
newbalance=balance+amount
account[1]=newbalance
print("bank info state: ",bankinfo)