lines = list(map(lambda y: (y[0], int(y[1])), (x.strip().split() for x in open("input.txt"))))
length = len(lines)

executed = set()
pos = 0
acc = 0

print(lines)
while True:
    cmd, val = lines[pos]
    executed.add(pos)
    if cmd == 'nop':
        pos += 1
    elif cmd == 'acc':
        acc += val
        pos += 1
    elif cmd == 'jmp':
        pos += val
    if pos in executed:
        print('loop detected, current acc:', acc)
        break
    if pos >= length:
        print('out of bounds:', pos)
        break