import hashlib

class QuantumAvalanche_256:
    def __init__(self):
        # Initialize constants similar to SHA-256
        self.constants = [
            0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1,
            0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
            0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786,
            0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
            0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147,
            0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
            0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b,
            0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
            0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a,
            0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
            0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
        ]
        self.initial_state = [
            0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
            0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19
        ]
        self.rounds = 64

    def _right_rotate(self, value, shift):
        return ((value >> shift) | (value << (32 - shift))) & 0xFFFFFFFF

    def _initialize_state(self, message):
        msg_bytes = message.encode('utf-8')
        length = len(msg_bytes) * 8
        msg_bytes += b'\x80' + b'\x00' * ((56 - len(msg_bytes) % 64) % 64)
        msg_bytes += length.to_bytes(8, 'big')
        chunks = [msg_bytes[i:i+64] for i in range(0, len(msg_bytes), 64)]
        return chunks

    def _process_chunk(self, chunk, state):
        w = [int.from_bytes(chunk[i:i+4], 'big') for i in range(0, 64, 4)]
        for i in range(16, 64):
            s0 = self._right_rotate(w[i - 15], 7) ^ self._right_rotate(w[i - 15], 18) ^ (w[i - 15] >> 3)
            s1 = self._right_rotate(w[i - 2], 17) ^ self._right_rotate(w[i - 2], 19) ^ (w[i - 2] >> 10)
            w.append((w[i - 16] + s0 + w[i - 7] + s1) & 0xFFFFFFFF)

        a, b, c, d, e, f, g, h = state
        for i in range(self.rounds):
            S1 = self._right_rotate(e, 6) ^ self._right_rotate(e, 11) ^ self._right_rotate(e, 25)
            ch = (e & f) ^ (~e & g)
            temp1 = (h + S1 + ch + self.constants[i] + w[i]) & 0xFFFFFFFF
            S0 = self._right_rotate(a, 2) ^ self._right_rotate(a, 13) ^ self._right_rotate(a, 22)
            maj = (a & b) ^ (a & c) ^ (b & c)
            temp2 = (S0 + maj) & 0xFFFFFFFF

            h, g, f, e, d, c, b, a = g, f, e, (d + temp1) & 0xFFFFFFFF, c, b, a, (temp1 + temp2) & 0xFFFFFFFF

        for i in range(8):
            state[i] = (state[i] + [a, b, c, d, e, f, g, h][i]) & 0xFFFFFFFF

    def hash(self, message):
        state = self.initial_state[:]
        chunks = self._initialize_state(message)
        for chunk in chunks:
            self._process_chunk(chunk, state)
        return ''.join(f'{x:08x}' for x in state)
        