fun next() = readLine()!!
fun nextInt() = next().toInt()
fun nextLong() = next().toLong()
fun nextDouble() = next().toDouble()
fun nextList() = next().split(" ")
fun nextIntList() = next().split(" ").map { it.toInt() }
fun nextLongList() = next().split(" ").map { it.toLong() }
fun nextDoubleList() = next().split(" ").map { it.toDouble() }

fun main(){
    val N = nextInt()
    val A = Array(N){ IntArray(N) }
    for(i in 0 until N){
        val a = nextIntList()
        for(j in 0..i){
            A[i][j] = a[j]
        }
    }

    println(A.last().joinToString(" "))
}