#include<stdio.h>
#include<stdlib.h>
long long int n,m,t,d,total=0,dra=0,tmp=0,i,j,bad[99999999]={0};
int main () {
scanf("%lld%lld%lld",&n,&t,&m);
for(i=1;i<=m;i++){
printf("%lld\n",&tmp);
bad[tmp]=1;
}
for(j=1;j<=t;j++){
for(i=1;i<=n;i++){
if(bad[i]==1){
bad[i-1]=1;
bad[i+1]=1;
}
}
for(i=1;i<=n;i++){
if(bad[i]==1){
total++;
}
}
printf("%lld\n",total);
}
return 0;
}
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