17871번 - Integers in Rational Bases 다국어

Given relatively prime positive integers p > q, any positive integer, n, can be written uniquely as a linear combination of powers of (p/q) with coefficients in the range 0 … (p-1).

n = a0 + a1*(p/q) + a2*(p/q)² + …

For instance,

15 = 2*(3/2)⁴ + 1*(3/2)³ + 0*(3/2)² + 1*(3/2) + 0

15 = 4*(7/4)² + 1*(7/4) + 1

Write a program to find the base (p/q) expansion of an integer n. As digits for the base (p/q) expansion, use the characters 0-9, then A-Z, then a-z.

Input consists of a single line that contains 3 space separated decimal values. They are the numerator p (3 <= p <= 62) of the fractional base, followed by the decimal denominator q (2 <= q <= (p-1)) of the fractional base, followed by the positive integer n to be represented in base (p/q). Values of p, q, and n will be chosen so that p and q are relatively prime, the expansion has at most 40 digits and n will fit in a 32-bit unsigned integer.

Your program should produce a single output line containing a string of digits [0-9,A-Z,a-z] with the most significant digit first.