import os

numbers = []
group_name = input("Enter the group name: ")

while True:
    number = input("Enter a phone number (or press Enter to finish): ")
    if number == "":
        break
    numbers.append(number)

filename = f"{group_name}_contacts.vcf"
with open(filename, 'w') as f:
    for i, number in enumerate(numbers, start=1):
        f.write("BEGIN:VCARD\n")
        f.write("VERSION:3.0\n")
        f.write(f"N:{group_name}_{i:03d};;;\n")
        f.write(f"FN:{group_name}_{i:03d}\n")
        f.write(f"TEL;TYPE=CELL:+91{number}\n")
        f.write(f"X-WhatsApp-Group:{group_name}\n")  # Add WhatsApp group tag
        f.write("END:VCARD\n\n")

print(f"A single VCF file '{filename}' with {len(numbers)} contacts has been created in the current directory.")
print(f"These contacts are tagged for easy addition to a WhatsApp group named '{group_name}'.")