Tank Collector

tanks = [x for x in input().split(", ")]
n = int(input())

for i in range(n):
    tokens = [x for x in input().split(', ')]
    cmd = tokens[0]
    if 'Add' in cmd:
        name = tokens[1]
        if name in tanks:
            print('Tank is already bought')
        else:
            print('Tank successfully bought')
            tanks.append(name)
    elif 'Remove At' in cmd:
        idx =  int(tokens[1])
        if 0 <= idx < len(tanks):
            print('Tank successfully sold')
            tanks.pop(idx)
        else:
            print('Index out of range')
    elif 'Remove' in cmd:
        name = tokens[1]
        if name in tanks:
            print('Tank successfully sold')
            tanks.remove(name)
        else:
            print('Tank not found')
    elif 'Insert' in cmd:
        idx =  int(tokens[1])
        new_tank =  tokens[2]
        if 0 <= idx < len(tanks):
            if new_tank in tanks:
                print('Tank is already bought')
            else:
                print('Tank successfully bought')
                tanks.insert(idx, new_tank)
        else:
            print('Index out of range')

print(', '.join(tanks))