#include<cstdio>
const int mod=998244353;
int x[201],y[201],p[201];
int main(){
    int n;scanf("%d",&n);
    for(int i=0;i<n;i++)scanf("%d%d",&x[i],&y[i]);
    p[0]=1;
    for(int i=0;i<n;i++)p[i+1]=(p[i]<<1)%mod;
    int ans=p[n]-n-1;
    for(int i=0;i<n;i++)
        for(int j=0;j<i;j++){
            int cnt=0;
            for(int k=0;k<j;k++)if((x[i]-x[j])*(y[i]-y[k])==(x[i]-x[k])*(y[i]-y[j]))cnt++;
            ans=(ans-p[cnt]+mod)%mod;
        }
    printf("%d\n", ans);
    return 0;
}