Numbers with Digit Sum Multiple of 3

1# Print numbers
2print("Numbers with digit sum multiple of 3:")
3for num in range(1, 101):
4    # Calculate digit sum
5    digit_sum = 0
6    temp = num
7    while temp > 0:
8        digit_sum += temp % 10
9        temp //= 10
10    
11    # Check if multiple of 3
12    if digit_sum % 3 == 0:
13        print(num, end=" ")
14print()