1. World Tour

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


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


def switch(stops_str, old, new):
    try:
        if old in stops_str and old != new:
            result = stops_str.replace(old, new)
            print(result)
    except:
        print('error')
    return result


stops = input()

data = input()

while not data == "Travel":
    splitted_data = data.split(':')
    command = splitted_data[0]

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

    data = input()

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