readint.cpp

// a code snippet to read integers and long long integers faster
#include <bits/stdc++.h>
#define ll long long
using namespace std;

#ifndef ONLINE_JUDGE
#define gc getchar
#define pc putchar
#else
#define gc getchar_unlocked
#define pc putchar_unlocked
#endif

int read_int() {
    char c = gc();
    while((c < '0' || c > '9') && c != '-') c = gc();
    int ret = 0, neg = 0;
    if (c == '-') neg = 1, c = gc();
    while(c >= '0' && c <= '9') {
        ret = 10 * ret + c - 48;
        c = gc();
    }
    return neg ? -ret : ret;
}

ll read_ll() {
    char c = gc();
    while((c < '0' || c > '9') && c != '-') c = gc();
    ll ret = 0;
    int neg = 0;
    if (c == '-') neg = 1, c = gc();
    while(c >= '0' && c <= '9') {
        ret = 10 * ret + c - 48;
        c = gc();
    }
    return neg ? -ret : ret;
}

int main() {
    int n;
    ll k;
    n = read_int();
    k = read_ll();
    cout<<"n = "<<n<<" k = "<<k<<"\n";
    return 0;
}