Răspuns:
7031,7032,7033,7034,7035,7036,7037,7038,7039,7130,7132, 7133, 7134,7135,7136,7137,7138,7139,7230,7231,7233,7234,7235,7236,7237,7238,7239,7330,7331,7332,7334,7335,7336,7338,7339,7430,7431,7432,7433,7435,7436,7437,7438,7439,7530,7531,7532,7533,7534,7536,7536,7537,7538,7539,7630, 7631,7632,7633,7634,7635,7637,7638,7639,7730,7731,7732,7733,7734,7735,7736,7738,7739,7830,7831,7832,7833,7834,7835,7836,7837,7839,7930,7931,7932,7933,7934,7935,7936,7937,7938
Explicație pas cu pas:
x este diferit de y si x poate fii 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
si y poate fii 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0
si le iei pe rand dar sa nu fie la fel!
