[👨👨👧,👩👧].flat() = [🙎♂️,🙎♂️,👧,🙍♀️,👧]
Animal band: 🎤🦖 🎷🐛 🎺🐍 🎸🦔 🪕🦧 🎻🪱 🪘🐝 🥁🦂 🪗🦭 🎹🐙 🎶🦋 🎵🐋 🎼🕷
Hungry Caterpillar: 🥚🌝🐛🌞 🍏🍐🍐🫐🍓🍓🍓🍓🍊🍊🍊🍊🍊 🍫🍦🥒🧀🍖🍭🥧🌭🧁🍉 🤢🍃☺️ 🏠💫🦋
[👨👨👧,👩👧].flat() = [🙎♂️,🙎♂️,👧,🙍♀️,👧]
Animal band: 🎤🦖 🎷🐛 🎺🐍 🎸🦔 🪕🦧 🎻🪱 🪘🐝 🥁🦂 🪗🦭 🎹🐙 🎶🦋 🎵🐋 🎼🕷
Hungry Caterpillar: 🥚🌝🐛🌞 🍏🍐🍐🫐🍓🍓🍓🍓🍊🍊🍊🍊🍊 🍫🍦🥒🧀🍖🍭🥧🌭🧁🍉 🤢🍃☺️ 🏠💫🦋