// yukicoder: No.690 E869120 and Constructing Array 4 // 2019.7.13 bal4u #include #if 1 #define gc() getchar_unlocked() #define pc(c) putchar_unlocked(c) #else #define gc() getchar() #define pc(c) putchar(c) #endif int in() { // 非負整数の入力 int n = 0, c = gc(); do n = 10 * n + (c & 0xf); while ((c = gc()) >= '0'); return n; } void out(int n) { // 正整数の表示(出力) int i; char b[20]; i = 0; while (n) b[i++] = n % 10 + '0', n /= 10; while (i--) pc(b[i]); } void outs(char *s) { while (*s) pc(*s++); } char a[35]; int sz, s1; int main() { int i, j, K; K = in(); if (K == 0) { outs("2 0\n"); return 0; } while (K) s1 += (K & 1), a[++sz] = (K & 1), K >>= 1; out(sz+2), pc(' '); // N out(sz*(sz+1)/2 + s1), pc('\n'); // M sz++; for (i = 1; i < sz; i++) for (j = i+1; j <= sz; j++) { out(i), pc(' '), out(j), pc('\n'); } sz++; for (i = 1; i < sz; i++) if (a[i]) { out(i+1), pc(' '), out(sz), pc('\n'); } return 0; }