#include<bits/stdc++.h>
using namespace std;
const int maxn = 1e6+11;
int ll[maxn],rr[maxn],mark[maxn];
int ra[maxn],n,q;
int sz[maxn],ssz[maxn];
#define rep(i,j,k) for(int i = j; i <= k; i++)
#define scan(a) scanf("%d",&a)
#define scann(a,b) scanf("%d%d",&a,&b)
#define println(a) printf("%d\n",a)
struct ST{
int sum[maxn<<2],lazy[maxn<<2];
#define lc o<<1
#define rc o<<1|1
void init(){memset(lazy,-1,sizeof lazy);}
void pu(int o){sum[o]=sum[lc]+sum[rc];}
void pd(int o,int l,int r){
if(~lazy[o]){
lazy[lc]=lazy[rc]=lazy[o];
int m = l+r>>1;
sum[lc]=(ra[m]-ra[l]+1)*lazy[o];
sum[rc]=(ra[r]-ra[m+1]+1)*lazy[o];
lazy[o]=-1;
}
}
void build(int o,int l,int r){
if(l==r){
sum[o]=1;
return;
}
int m = l+r>>1;
build(lc,l,m);
build(rc,m+1,r);
pu(o);
}
void update(int o,int l,int r,int L,int R,int v){
if(L<=l&&r<=R){
sum[o]=(ra[r]-ra[l]+1)*v;
lazy[o]=v;
return;
}
pd(o,l,r);
int m = l+r>>1;
if(L<=m) update(lc,l,m,L,R,v);
if(R>m) update(rc,m+1,r,L,R,v);
pu(o);
}
int query(int o,int l,int r,int L,int R){
if(L<=l&&r<=R) return sum[o];
pd(o,l,r);
int m = l+r>>1;
int ans=0;
if(L<=m) ans+=query(lc,l,m,L,R);
if(R>m) ans+=query(rc,m+1,r,L,R);
return ans;
}
}st;
int main(){
while(scann(n,q)^-1){
rep(i,1,q) {scann(ll[i],rr[i]); scan(mark[i]);}
rep(i,1,q) {ra[i]=ll[i]; ra[i+q]=rr[i];}
sort(ra+1,ra+2*q+1);
int qq = unique(ra+1,ra+2*q+1)-ra-1;
// rep(i,1,qq) cout<<ra[i]<<" ";cout<<endl;
rep(i,1,q) ll[i]=lower_bound(ra+1,ra+qq+1,ll[i])-ra,rr[i]=lower_bound(ra+1,ra+qq+1,rr[i])-ra;
// rep(i,1,qq) cout<<ll[i]<<" "<<rr[i]<<endl;
rep(i,1,qq-1) sz[i]=ra[i+1]-ra[i];sz[qq]=ra[qq]?1:0;
// rep(i,1,qq) ra[i]=ra[i-1]+sz[i];
// for(int i = qq; i <= )
rep(i,1,qq) cout<<ra[i]<<" ";cout<<endl;
st.init();st.build(1,1,qq);
// ra[0]=0; rep(i,1,qq) ra[i]+=ra[i-1];
rep(i,1,q) cout<<ll[i]<<" "<<rr[i]<<" "<<mark[i]<<endl;
rep(i,1,q){
st.update(1,1,qq,ll[i],rr[i],(mark[i]==1?0:1));
println(st.query(1,1,qq,1,qq));
}
}
return 0;
}