This is more or less pseudo code I havent done c# in years, PS running on 1 hour of sleep so i might be wrong.
int i = 0;
public void printNum(j){
if(j > 100){
break;
} else {
print(j);
printNum(j + 1);
}
}
public void main(){
print(i);
printNum(i + 1);
}