#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

char*mmap();
#define RD(v) long v=0;{int _c;while(_c=*rp++-48,_c>=0)v=v*10+_c;}

char wbuf[11*100000];

#define MD 1000000007

main(){
	char*rp=mmap(0l,21l*100000+100,1,2,0,0ll);
	char*wp=wbuf;
	while(*rp++!=10);
	do{
		RD(x);
		RD(k);
		
		long s=MD-1;
		long u=1;
		long v=0;
		while(s){
			long e=k/s;
			{ long t=k-e*s; k=s; s=t; }
			{ long t=u-e*v; u=v; v=t; }
		}
		u+=u<0?MD-1:0;
		
		long z=1;
		for(;u;u>>=1){
			if(u&1){
				z=z*x%MD;
			}
			x=x*x%MD;
		}
		
		if(z>=100000000){
			{
				long z2=z/100000000;
				long n=0;
				long d=0;
				while(d=d<<8|z2%10|0x30,++n,z2/=10);
				*(long*)wp=d;
				wp+=n;
			}
			{
				long n=8;
				long d=0;
				while(d=d<<8|z%10|0x30,z/=10,--n);
				*(long*)wp=d;
				wp+=8;
			}
		}else{
			long n=0;
			long d=0;
			while(d=d<<8|0x30|z%10,++n,z/=10);
			*(long*)wp=d;
			wp+=n;
		}
		*wp++=10;
	}while(*rp);
	write(1,wbuf,wp-wbuf);
	_exit(0);
}