local mod = 1000000007 local function badd(a, b) return (a + b) % mod end local s = io.read() local d = io.read("*n") local base = 0 local qcnt = 0 for i = 1, #s do local ss = s:sub(i, i) if ss == "?" then qcnt = qcnt + 1 else base = base + ss:byte(1) - 48 end end if qcnt == 0 then if base == 0 then print(d == 0 and 1 or 0) else base = base % 9 if base == 0 then base = 9 end print(d == base and 1 or 0) end os.exit() end local dp1, dp2 = {}, {} for i = 0, 8 do dp1[i] = 0 end dp1[0] = 1 for iq = 1, qcnt do local src = iq % 2 == 1 and dp1 or dp2 local dst = iq % 2 == 1 and dp2 or dp1 for i = 0, 8 do dst[i] = 0 end for i = 0, 8 do for j = 0, 9 do local z = (i + j) % 9 dst[z] = badd(dst[z], src[i]) end end end local tbl = qcnt % 2 == 1 and dp2 or dp1 local ans = {} for i = 0, 8 do -- print(i, tbl[i]) local z = (i + base) % 9 ans[z] = tbl[i] end if base == 0 then ans[9] = (ans[0] + mod - 1) % mod ans[0] = 1 else ans[9] = ans[0] ans[0] = 0 end print(ans[d])