Exceptions

Errors detected during execution are called exceptions.

Examples:

ZeroDivisionError

This error is raised when the second argument of a division or modulo operation is zero.

a = '1'
b = '0'
print int(a) / int(b)
ZeroDivisionError: integer division or modulo by zero

ValueError

This error is raised when a built-in operation or function receives an argument that has the right type but an inappropriate value.

a = '1'
b = '#'
print int(a) / int(b)
ValueError: invalid literal for int() with base 10: '#'

To learn more about different built-in exceptions click here.

Handling Exceptions

The statements try and except can be used to handle selected exceptions. A try statement may have more than one except clause to specify handlers for different exceptions.

Code

try:
print 1/0
except ZeroDivisionError as e:
print "Error Code:",e

Output

Error Code: integer division or modulo by zero

Task

You are given two values $\boldsymbol{\alpha}$ and $\boldsymbol{b}$.

Perform integer division and print $a/b$.

Input Format

The first line contains $\mathbf{T}$, the number of test cases.

The next $\mathbf{T}$ lines each contain the space separated values of $\boldsymbol{\alpha}$ and $\boldsymbol{b}$.

Constraints

$0<T<10$

Output Format

Print the value of $a/b$.

In the case of ZeroDivisionError or ValueError, print the error code.

Sample Input
3
1 0
2 $
3 1

Sample Output
Error Code: integer division or modulo by zero
Error Code: invalid literal for int() with base 10: '$'
3

Note:

For integer division in Python 3 use //.

见题面

见题面