class Graph(private val numVertices: Int) {
    private val adjMatrix: Array<IntArray>

    init {
        adjMatrix = Array(numVertices) { IntArray(numVertices) }
    }

    fun addEdge(src: Int, dest: Int) {
        adjMatrix[src][dest] = 1
        adjMatrix[dest][src] = 1
    }

    fun removeEdge(src: Int, dest: Int) {
        adjMatrix[src][dest] = 0
        adjMatrix[dest][src] = 0
    }

    fun printGraph() {
        for (i in 0 until numVertices) {
            for (j in 0 until numVertices) {
                print(adjMatrix[i][j])
            }
            println()
        }
    }
}

fun main() {
    val graph = Graph(5)
    
    // 그래프에 간선 추가
    graph.addEdge(0, 1)
    graph.addEdge(0, 4)
    graph.addEdge(1, 2)
    graph.addEdge(1, 3)
    graph.addEdge(1, 4)
    graph.addEdge(2, 3)
    graph.addEdge(3, 4)
    
    // 그래프 출력
    graph.printGraph()
}