On a wooden stick with a length of 17 cm, dye a red dot every 6 cm from left to right, and then dye a black dot every 5 cm from right to left, saw the stick along all the points, and a length of 4 cm How many sticks are there in total?
在长17厘米的木棍上，从左往右每隔6厘米染一个红点，再从右往左每隔5厘米染一个黑点，沿所有点将木棍锯开，长度为4厘米的木棍共有多少根．
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