a=10
b="hi i am x, my age is: {}"
print(b.format(a))
age=20
dno=87
pincode=636030
details="hi i am x, my age is {},dno is {}, pincode is:{}"
print(details.format(age,dno,pincode))
detailsarray="my doorno is:{1},age is:{0}, pincode is:{2}"
print(details.format(age,dno,pincode))
