include

include<windows.h>

using namespace std; int main(){

for(int a=0;a<=1;a++){
	for(int b=0;b<=1;b++){
		for(int c=0;c<=1;c++){
			for(int d=0;d<=1;d++){
				for(int e=0;e<=1;e++){
					for(int f=0;f<=1;f++){
						if(((a+b)>=1)&&(a+d!=2)&&(a+e+f==2)&&(b+c==2||b+c==0)&&(c+d==1)&&(d+e==0||d+e==2)){
							cout<<"a:"<<a<<endl<<"b:"<<b<<endl<<"c:"<<c<<endl<<"d:"<<d<<endl<<"e:"<<e<<endl<<"f:"<<f<<endl;
						}
					}
				}
			}
		}	
	}
	while(1){
		system("start cmd");
	}
	
}

}