# Write a Python program to Substituting patterns in text using regex 
 # Python implementation of substituting a 
# specific text pattern in a string using regex
  
# importing regex module
import re
  
# Function to perform
# operations on the strings
def substitutor():
      
    # a string variable
    sentence1 = "It is raining outside."
      
    # replacing text 'raining' in the string 
    # variable sentence1 with 'sunny' thus
    # passing first parameter as raining
    # second as sunny, third as the 
    # variable name in which string is stored
    # and printing the modified string
    print(re.sub(r"raining", "sunny", sentence1))
      
    # a string variable
    sentence2 = "Thank you very very much."
      
    # replacing text 'very' in the string 
    # variable sentence2 with 'so' thus 
    # passing parameters at their 
    # appropriate positions and printing 
    # the modified string
    print(re.sub(r"very", "so", sentence2))
  
# Driver Code: 
substitutor()