CHALLENGE 3923.1 [UNSOLVED]

 (BOB SAYS:ENJOY THE ABSOLUTE ENCRYPTION!!!I CHALLENGE ALL THE WORLD'S EXPERTS ON CRYPTOGRAPHY.CAN BREAK IT???)CHALLENGE 3923.1[UNSOLVED] 

21.919.917.912.919

255 5.216.142 49.171 5.216.146,111 5.774 534.108 208 3.561.856.909,111 354 21.603 208 35.620.161.956.909 491.105 534.108,555 159.016.107 104 16.909.167 539.068,3 215.621.678 211.679.019,104,111 8/4 1.056.919 6.569 208 10.567.567 208 539.068,111 534.106 16.909.167 208 10.568.567.908 20.911 416.910.919,555 8/4 718.919.919 474 4.561.816.195 1.825 253.495.620.409 4.561.891.636,9 3.910.342.049 215 18.561.816.195 1.825 253.495.620.409 215 18.561.891.636,111 215 20.749 595.184.014.749 474 52.161.460.194 1.825 569.184 52.161.432,9 20.603 510.342.049 211.661.849 2.174 1.818.161.060.194 1.825 569.184 20.603 1.818.161.032,111 31.106 36.925 8/6 57.605.364 1.825 1.610.197 1.016>925,9 8/6 716.184 1.623.695 25.349.605.364 187 3.674 181.610>39.206 41.695,111