0+3 = 3;
3*10 = 30; 30+4 =34;
34 * 10 = 340; 340 + 5 = 345;
345 * 10 = 3450; 3450 + 6 = 3456;
3456 * 10 = 34560; 34560 + 7 = 34567;
==
34567 + 4 = 34571;
0+3 = 3;
3*10 = 30; 30+4 =34;
34 * 10 = 340; 340 + 5 = 345;
345 * 10 = 3450; 3450 + 6 = 3456;
3456 * 10 = 34560; 34560 + 7 = 34567;
==
34567 + 4 = 34571;