the output$($import hashlib

import random

import string

# Step $1$: Define the SHA$60$v hash function

def SHA$60$v$($message$)$:

# Calculate the SHA$-1$ hash of the message

sha$1\_$hash $=$ hashlib.sha$1($message$.$encode$()).$hexdigest$()$

# Extract the first $60$ bits $(15$ nibbles$)$ of the SHA$-1$ hash

sha$60$v$\_$hash $=$ sha$1\_$hash$[$:$15]$

return sha$60$v$\_$hash

# Function to generate a random message

def generate$\_$random$\_$message$($length$=10)$:

# Generate a random message consisting of letters and digits

return $\text{'}\text{'}.$join$($random$.$choices$($string$.$ascii$\_$letters $+$ string.digits, k$=$length$))$

# Step $2$: Finding a collision

def find$\_$collision$()$:

seen$\_$hashes $=\{\}$

message$1=""$

message$2=""$

while True:

# Generate a random message

message $=$ generate$\_$random$\_$message$()$

# Calculate the SHA$60$v hash of the message

sha$60$v$\_$hash $=$ SHA$60$v$($message$)$

# Check if the hash has been seen before

if sha$60$v$\_$hash in seen$\_$hashes:

message$1=$ seen$\_$hashes$[$sha$60$v$\_$hash$]$

message$2=$ message

break

else:

seen$\_$hashes$[$sha$60$v$\_$hash$]=$ message

return message$1,$ message$2$

# Example usage

collision$\_$message$1,$ collision$\_$message$2=$ find$\_$collision$()$

print$("$Collision found:"$)$

print$("$Message $1$:$",$ collision$\_$message$1)$

print$("$Message $2$:$",$ collision$\_$message$2))$