# ⑮チャレンジしよう！の解答例

    for i in 1...4 {
        color(0) //透明
        for j in 1...4 {
            drop(i)
            drop(i+6)
        }
        color(2) //緑
        drop(5)
        drop(6)
    }
    for i in 1...10 {
        drop(i)
        drop(i)
    }
    for i in 1...4 {
        color(0) //透明
        for j in 1...4 {
            drop(i)
            drop(i+6)
        }
        color(2) //緑
        drop(5)
        drop(6)
    }

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