package main

import (
    "fmt"
)

func solve(A int) [][]int {
    triangle := make([][]int, A, A)
    for i := range triangle {
        triangle[i] = make([]int, i+1, i+1)
    }

    if A == 0 {
        return triangle
    }

    triangle[0][0] = 1
    for i := 1; i < A; i++ {
        triangle[i][0] = 1
        for j := 1; j <= i; j++ {
            if j < i {
                triangle[i][j] = triangle[i-1][j] + triangle[i-1][j-1]
            } else {
                triangle[i][j] = 0 + triangle[i-1][j-1]
            }
        }
    }

    return triangle
}

func main() {
    fmt.Println(solve(0))
}