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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def solve(N):
    """Given a positive integer N, return the total sum of its digits in binary. Example For N = 1000, the sum of digits will be 1 the output should be "1". For N = 150, the sum of digits will be 6 the output should be "110". For N = 147, the sum of digits will be 12 the output should be "1100". @N integer a string of binary number """
    return bin(sum(int(i) for i in str(N)))[2:]
