TypeError: unsupported operand type(s) for -: 'str' and 'str'

Question

I am trying to do a simple subtraction program.

```python
a = input()
b = input()
print(a-b)
```

But its throwing me an error `unsupported operand type(s) for -: 'str' and 'str'`  how to fix?

Divya · Accepted Answer

By default, the input method reads the values as strings, to fix that you need to typecast

```python
a = input()
b = input()
print(int(a)-int(b))
```

1 Answer