Интерпретатор практически полноценного языка "Взрыв мозга"

a, i = [0 for _ in range(30000)], 0
for c in input():
    if c == '>':
        i = (i + 1) % 30000
    elif c == '<': 
        i = (i + 29999) % 30000
    elif c == '+': 
        a[i] = (a[i] + 1) % 256
    elif c == '-':
        a[i] = (a[i] + 255) % 256
    elif c == '.': 
        print(a[i])

tape = [0 for _ in range(30001)]
position = 0
f = False
s = False
for cmd in input():
    test = tape[position]
    if cmd == '[':
        f = True
    elif f and not s and cmd == '-':
        tape[position] = 1
    elif cmd == ']':
        s = True
    if f and s:
        f = False
        s = False
    elif cmd == '>':
        position += 1   
    elif cmd == '<':
        position -= 1
    elif cmd == '+':
        tape[position] += 1
    elif cmd == '-':
        tape[position] -= 1
    elif cmd == '.':
        print(tape[position])
    if tape[position] > 255:
        tape[position] = 0
    elif tape[position] < 0:
        tape[position] = 255

tape_data = [0 for _ in range(30001)]
i = 0
tape_cmds = '++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.'
j = 0
while True:
    cmd = tape_cmds[j]
    if cmd == '+':
        tape_data[i] += 1
    elif cmd == '-':
        tape_data[i] -= 1
    elif cmd == '>':
        i += 1
    elif cmd == '<':
        i -= 1
    elif cmd == '.':
        print(tape_data[i])
    elif cmd == '[':
        if tape_data[i] == 0:
            while tape_cmds[j] != ']':
                j += 1
            # ~ j += 1
    elif cmd == ']':
        while tape_cmds[j] != '[':
            j -= 1
        j -= 1
    else:
        raise ValueError(cmd)
    j += 1