//Ilie Dumitru
#include<cstdio>
#define NMAX 32001

int tati[NMAX], cost[NMAX], depth[NMAX];

int lca(int x, int y)
{
    int min=100001;
    if(x==y)
        return 0;
    while(depth[x]<depth[y])
    {
        if(cost[y]<min) min=cost[y];
        y=tati[y];
    }
    while(depth[x]>depth[y])
    {
        if(cost[x]<min) min=cost[x];
        x=tati[x];
    }
    while(x!=y)
    {
        if(cost[x]<min) min=cost[x];
        if(cost[y]<min) min=cost[y];
        x=tati[x];
        y=tati[y];
    }
    return min;
}

int main()
{
    freopen("atac.in", "r", stdin);
    freopen("atac.out", "w", stdout);
    int N, P, M, i, x, A, B, C, D, X, Y, Z;
    scanf("%d%d%d", &N, &M, &P);
    for(i=1;i<N;++i) {scanf("%d%d", &x, &cost[i]);tati[i]=--x;depth[i]=depth[x]+1;}
    scanf("%d%d%d%d%d%d", &X, &Y, &A, &B, &C, &D);
    fclose(stdin);
    --X;
    --Y;
    for(i=M;i>-1;i--)
    {
        Z=lca(X, Y);
        X=((X+1)*A+(Y+1)*B)%N;
        Y=((Y+1)*C+Z*D)%N;
        if(i<P)
            printf("%d\n", Z);
    }
    fclose(stdout);
    return 0;
}