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

#define rd_skip() while(*rp++>=48)
#define rd() ({long _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;})

#define WTHI(v) {ulong _z=v,_n=0,_d=0;while(++_n,_d=_d<<8|0x30|_z%10,_z/=10);*(ulong*)wp=_d;wp+=_n;}
#define WTLO(v) {ulong _z=v,_n=8,_d=0;while(_d=_d<<8|0x30|_z%10,_z/=10,--_n);*(ulong*)wp=_d;wp+=8;}
#define wt(v) if(v>=100000000){WTHI(v/100000000);WTLO(v);}else{WTHI(v);}

typedef unsigned long ulong;
char wbuf[1<<25];

#define MD 1000000007

int main(){
	char*mmap();
	char*rp=mmap(0l,1l<<25,1,2,0,0ll);
	char*wp=wbuf;

	rd_skip();
	while(*rp){
		ulong n=rd();
		ulong m=rd()>>1;
		ulong r=1;
		while(m){
			if(m&1){
				r=r*n%MD;
			}
			m>>=1;
			n=n*n%MD;
		}
		ulong z=((r*500000004+666666671)%MD*r%MD*r+833333339)%MD*r%MD;
		wt(z);
		*wp++='\n';
	}
	
	write(1,wbuf,wp-wbuf);
	_exit(0);
}