#include #define rep(i,a,b) for(int i=a;i> N; int n = N.length(); int A = 0, B = 0; rep(i, 0, n) { if (N[i] == '7') { A = 10 * A + 1; B = 10 * B + 6; } else { A = 10 * A; B = 10 * B + (N[i] - '0'); } } printf("%d %d\n", A, B); }