World tour

def add_stop(stops_str, idx, str):
    if idx in range(len(stops_str)):
        return stops_str[:idx] + str + stops_str[idx:]
    return stops_str


def remove_stop(stops_str, start, stop):
    if start in range(len(stops_str)) and stop in range(len(stops_str)):
        return stops_str[:start] + stops_str[stop + 1:]
    return stops_str


def switch(stops_str, old, new):
    return stops_str.replace(old, new)


stops = input()

while True:
    data = input()

    if data == "Travel":
        break

    split_data = data.split(':')
    command = split_data[0]

    if command == "Add Stop":
        index = int(split_data[1])
        string = split_data[2]
        stops = add_stop(stops, index, string)
    elif command == "Remove Stop":
        start_index = int(split_data[1])
        stop_index = int(split_data[2])
        stops = remove_stop(stops, start_index, stop_index)
    elif command == "Switch":
        old_string = split_data[1]
        new_string = split_data[2]
        stops = switch(stops, old_string, new_string)

    print(stops)

print(f"Ready for world tour! Planned stops: {stops}")