You are given an equation A * X + B * Y = C , A, B, C are positive integer coefficients, X and Y are variables which can have positive integer values only. Output the number of solutions of this equation and the solutions themselves.

输入描述:

The only line of input contains integers A, B and C (1 ≤ A, B, C ≤ 1000), separated with spaces.

输出描述:

In the first line of the output print the number of the solutions N. In the next N lines print the solutions, formatted as "XY", sorted in ascending order of X, one solution per line.