#include <iostream>
#include <sstream>
#include <algorithm>
#include <cstdio>
#include <math.h>
#include <set>
#include <map>
#include <queue>
#include <string>
#include <string.h>
#include <bitset>
#define REP(i,a,n) for(int i=a;i<=n;++i)
#define PER(i,a,n) for(int i=n;i>=a;--i)
#define hr putchar(10)
#define pb push_back
#define lc (o<<1)
#define rc (lc|1)
#define mid ((l+r)>>1)
#define ls lc,l,mid
#define rs rc,mid+1,r
#define x first
#define y second
#define io std::ios::sync_with_stdio(false)
#define endl '\n'
#define DB(a) ({REP(__i,1,n) cout<<a[__i]<<' ';hr;})
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
const int P = 998244353, INF = 0x3f3f3f3f;
ll gcd(ll a,ll b) {return b?gcd(b,a%b):a;}
ll qpow(ll a,ll n) {ll r=1%P;for (a%=P;n;a=a*a%P,n>>=1)if(n&1)r=r*a%P;return r;}
ll inv(ll x){return x<=1?1:inv(P%x)*(P-P/x)%P;}
inline int rd() {int x=0;char p=getchar();while(p<'0'||p>'9')p=getchar();while(p>='0'&&p<='9')x=x*10+p-'0',p=getchar();return x;}
//headconst int N = 63;
int C[N][N],f[N][N];
int main() {REP(i,0,N-1) {C[i][0] = 1;REP(j,1,i) C[i][j]=(C[i-1][j]+C[i-1][j-1])%P;}REP(i,0,N-1) REP(j,0,N-1) REP(ii,0,i) REP(jj,0,j) if ((ii+2*jj)%3==0) {f[i][j] = (f[i][j]+(ll)C[i][ii]*C[j][jj])%P;}int t;scanf("%d", &t);while (t--) {ll n, a;scanf("%lld%lld", &n, &a);n %= P-1;int c[2]{};REP(i,0,N-1) if (a>>i&1) ++c[i&1];int ans = 0;REP(i,0,c[0]) REP(j,0,c[1]) {int ret = (ll)C[c[0]][i]*C[c[1]][j]%P*qpow(f[i][j],n)%P;if (c[0]+c[1]+i+j&1) ret = P-ret;ans = (ans+ret)%P;}printf("%d\n", ans);}
}